Difference between revisions of "Dangun Feveron"

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(Another baffling thing I don't understand)
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[[File:Dangun_Speed.png|400px]]<br>
 
[[File:Dangun_Speed.png|400px]]<br>
 
Unlike other CAVE games, the ships do not have their own speed, nor do they have a slow movement when using the secondary shot. Instead, you choose what speed your ship will be at for the entire game.<br>Player speeds below 3 are not considered viable for scoring as they will be unable to catch enemies quickly enough or to chase items.
 
Unlike other CAVE games, the ships do not have their own speed, nor do they have a slow movement when using the secondary shot. Instead, you choose what speed your ship will be at for the entire game.<br>Player speeds below 3 are not considered viable for scoring as they will be unable to catch enemies quickly enough or to chase items.
 +
 +
{| class="wikitable"
 +
! Speed
 +
! Frames to cross screen
 +
! Appx. pixels/frame
 +
|-
 +
| Speed 1 || ~72 || 3.36
 +
|-
 +
| Speed 2 || 61 || 3.96
 +
|-
 +
| Speed 3 || ~45 || 5.39
 +
|-
 +
| Speed 4 || ~41 || 5.93
 +
|}
  
 
=== Hitbox ===
 
=== Hitbox ===
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===Rank===
 
===Rank===
 
----
 
----
[[Help:Glossary#Rank|Rank]] varies through decimal values 0-63. It affects enemy bullet speed, and in fewer cases firing rate. Rank is primarily determined by stage and powerup status with survival time as a secondary factor. Due to its lack of powerups, Uotaro experiences significantly lower rank throughout the game compared to the normal ships. Strategic rank management is nonexistent, and during the final two stages rank reduction is minimal.
+
[[Help:Glossary#Rank|Rank]] affects enemy bullet speed, and in fewer cases firing rate. Rank is primarily determined by stage and powerup status. Due to its lack of powerups, Uotaro experiences significantly lower rank throughout the game compared to the normal ships. Strategic rank management is nonexistent, and during the final two stages rank reduction is minimal.
  
 
An incomplete explanation is below for the curious.{{Template:Unconfirmed}}
 
An incomplete explanation is below for the curious.{{Template:Unconfirmed}}
  
 
====Basic rank====
 
====Basic rank====
 +
Basic rank varies through decimal values 0-63.
  
 
Each stage has a minimum rank value. These are affected by the difficulty dipswitch in the service menu.
 
Each stage has a minimum rank value. These are affected by the difficulty dipswitch in the service menu.
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====Other====
 
====Other====
  
In some runs, an additional, seemingly permanent, increase in bullet speed can be observed at the start of stage 5. The trigger for this is unknown. It may be related to both the no-miss flag and high scoring, but apparently not either of them in isolation.{{Template:Unconfirmed}}
+
In some runs, an additional, seemingly permanent, increase in bullet speed can be observed at the start of stage 5 (roughly a 12% increase). The trigger for this is unknown. It may be related to both the no-miss flag and high scoring, but apparently not either of them in isolation.{{Template:Unconfirmed}}
  
 
==Strategy & Techniques==
 
==Strategy & Techniques==
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[[File:Dfeveron-s3turret.gif|thumb|right|Note the shot hitsparks. Turrets are continuing to spawn near the top left even though the rails have scrolled away.]]
 
[[File:Dfeveron-s3turret.gif|thumb|right|Note the shot hitsparks. Turrets are continuing to spawn near the top left even though the rails have scrolled away.]]
  
The third section of stage 3 is introduced by a bridge zone with a column of respawning rail turrets on each side. Wedging the ship against the left or right edge while pointblanking the turrets will lead to them being continually killed and replaced every few frames, doling out a massive amount of points. Additionally, positioning the ship in a specific way can cause the game to continue replacing the turrets after the point it would normally stop.
+
The third section of stage 3 is introduced by a bridge zone with a column of respawning rail turrets on each side. Wedging the ship against the left or right edge while pointblanking the turrets will lead to them being continually killed and replaced every few frames, doling out a massive amount of points. Additionally, positioning the ship in a specific way can cause the game to continue replacing the turrets after the point it would normally stop. [https://youtu.be/oXViRIChfww Video of turret glitch positioning]
  
 
Performing this trick will overload the sprite limit, making survival unrealistic without the use of two or three Bombers. Uotaro, which lacks a Bomber, is unable to fully take advantage of it.
 
Performing this trick will overload the sprite limit, making survival unrealistic without the use of two or three Bombers. Uotaro, which lacks a Bomber, is unable to fully take advantage of it.
Line 324: Line 339:
 
|Type C || ~515
 
|Type C || ~515
 
|}
 
|}
 +
=== Stage 4: Table 3 ===
 +
----
 +
This is the only part of stage 4 where a great number of points can be gained or lost. Players are encouraged to rush to the end of the table for a series of cash-out waves that can total 150,000 to 200,000 points. It is also the only part of the game that involves enemies appearing at the bottom of the screen. Routes vary with shot type, but typically at least 1 Bomber is used either to wipe out the turret battery for safety, or to save time on the reverse waves. [https://youtu.be/vaXC-txzeRs Video example of the table with B-Roll]
  
 
'''TODO:'''
 
'''TODO:'''

Revision as of 00:35, 23 September 2022

Dangun Feveron Logo.png
Dangun Feveron
Dangun Feveron Title.png

Title Screen

Developer: Cave
Publisher: Nihon System
Director: {{{director}}}
Producer: Kenichi Takano
Music: Nanpei Misawa
Tatsuhiko Kasuga (FM Arrange)
chibi-tech (VIP Arrange)
Program: Crusty
Takashi Ichimura
Hiroyuki Uchida
Art: Naoki Ogiwara
Hiroyuki Tanaka
Release date: September 1998
Previous game: ESP Ra.De.
Next game: Guwange

Dangun Feveron (弾銃フィーバロン, Dan jū fībaron; Fever SOS outside of Japan) is a vertically scrolling shoot 'em up, released in 1998 on CAVE 68000 hardware for arcades.

The game was being developed around the same time as ESP Ra.De., however Tsuneki Ikeda wasn't involved in its development as much, instead leaving the programming to "Crusty", Takashi Ichimura and Hiroyuki Uchida. The game went through several revisions, starting out as a mecha STG, but due to poor reception from location tests, the team decided on a disco theme.

The game is drastically different from other CAVE titles. Instead of slow and dense bullet patterns, the game is much faster with fewer bullets, feeling more like a Toaplan game.

The game received a home port for PlayStation 4 and XBox One in 2018, as part of M2's M2 ShotTriggers series for its 20th Anniversary. It includes the original arcade version of the game, a "FEVER" arrange, various practice modes, and two new arrange soundtracks: FM Arrange in vein of old Toaplan games by Tatsuhiko Kasuga and VIP Arrange by chibi-tech.

Story

Earth Invasion Ultimate Commander, Admiral Gratze, embarked on a mission to conquer the third planet from the sun, setting his sights on Planet FEVER. Planet FEVER was surrounded by mysterious electromagnetic waves, which are known to cause all equipment to go haywire, but Gratze thought it was a mere superstition. When it reached his private room and cut his call with his wife, Aileen, he swore destruction upon the residents of Planet Fever.

Planet FEVER Defense Force Esper Pilots Afro & McCoy, alongside Space Travelling FEVER Girl Stephanie team up to put a stop to the delusional madman.

Controls

  • A (Tap): Shot
  • A (Hold): Powerful Shot. All power shots take roughly 1/4th of a second to activate.
  • B: Bomber
  • C (Dipswitch): Rapid Shot

Characters / Ships

TODO: Make this whole section look like less of a mess

Each ship has a different Side Shot configuration and a different Bomber. Each main and side shot of each ship does the same damage per bullet, despite any visual differences.

Type A Bomber
Type B Bomber
Type C Bomber

Afro & McCoy.png
Afro (on the left) and McCoy (on the right) are the ace pilots of Planet FEVER's Defense Force. Afro's Type-A ship is a central shot. McCoy's Type-B ship is a 3-way shot with the side shots at a 15 degree angle.
Dangun Type A.png
Type A's extremely narrow overlapping shots allow it to do more damage from the bottom of the screen than the other types, which is at least theoretically helpful during boss phases that cannot be safely pointblanked. Unfortunately, the nature of the build-a-ship system strips it of other advantages. At nearer distances or versus giant targets, its shot power is no more effective than Type B, and it is totally reliant on its subweapon for horizontal range. Its nuke-style Bomber has a tendency to not hit anything if used as a panic button. There's really no practical reason to use this ship beyond seeking a challenge.

Dangun Type B.png
Type B's spread gives it the best consistency with frontal waves, and it's also capable of dealing full damage from a comfortably moderate distance, making it the easiest type to use. Its Bomber is the most damaging of the three and is directed, allowing it to be aimed away from enemies if desired.

Stephanie.png
Stephanie is the leader of the "Fever Girls" Dance Troupe. Her Type-C ship is a wide shot, with the side shots at a 45 degree angle.
Dangun Type C.png
Type C's advantage is being able to hit both side edges of the screen at once, or to hit the entire width of the screen at the top, both of which are very effective in some areas. Its performance against hard targets at a distance is pathetic, and it usually needs to get very close to hit with all of its streams. There are vulnerable blind spots between the main and side shots. Its Bomber does the least damage, but hits everything indiscriminately.

Power Shots


Unlike most CAVE games, where the ships have two weapons at all times (most of the time shot + laser), in Dangun Feveron, you get to choose your second shot to use for the entire game.

Lock ranges

Dangun PShot Lock.png

Lock-On: Fires a stream of fast saws which bends with the player's movement. On contact with an enemy, the stream will "stick" and automatically aim at it.

Comparable to the iconic purple weapon of the Raiden series, though lacking any penetrative ability. Lock-On does more damage than a single shotstream at a long distance, but less than combined shots or point-blanking. It is also difficult to aim and disrupted by zako, making it the weakest subweapon in the majority of situations.

Bomb explosion chaining

Dangun PShot Bomb.png

Bomb: Deploys missiles that slowly drift forwards. Up to three can be active simultaneously. Each missile grows in power the longer it is active. On impact, creates a large explosion; enemies killed by the explosion will create more explosions, potentially causing a chain reaction.

Bomb is entirely routing-oriented, capable of achieving the highest scores via both the highest damage and the best screen coverage of any subweapon, but is worthless when used haphazardly. Bomb is typically avoided with Type C as the combination has no tools versus bosses, and is often paired with Type A for the opposite reason.

Different Roll charges

Dangun PShot Roll.png

Roll: Charge shot. Deploys up to 8 blue orbs that "unwind" into a clockwise orbit. Upon release, the orbs fly straight forward and penetrate all enemies, damaging for each frame in contact. Charging can be resumed after all orbs have left the screen.

Roll is a flexible subweapon, capable of dealing a consistently large amount of damage from the bottom of the screen with minimal preparation. The combination of safety and power makes it by far the most effective anti-boss weapon. Due to how the orbs deploy, both short and long Roll charges are weak against single targets. Half-charging is the most useful technique, releasing multiple overlapping orbs in a small area.

Speed


Dangun Speed.png
Unlike other CAVE games, the ships do not have their own speed, nor do they have a slow movement when using the secondary shot. Instead, you choose what speed your ship will be at for the entire game.
Player speeds below 3 are not considered viable for scoring as they will be unable to catch enemies quickly enough or to chase items.

Speed Frames to cross screen Appx. pixels/frame
Speed 1 ~72 3.36
Speed 2 61 3.96
Speed 3 ~45 5.39
Speed 4 ~41 5.93

Hitbox


Red: Speed 1 (about 7x9 pixels); Purple: Speed 2 (about 9x9 pixels); Yellow: Speed 3 & 4 (about 11x9 pixels)

Feveron hitboxes.jpg

As with all CAVE games of the era, all enemy bullets have single-pixel collision, regardless of their visuals. Bullet collision is checked once every 2 frames.

Uotaro


Uotaro's hitbox

Uotaro is a hidden guest character from CAVE's puzzle game Puzzle Uo Poko. It can be selected by entering the code down up right left up down left right after inserting a credit.

  • Has no Bomber, Powerful Shot or Speed selection.
  • Can switch between the three shot configurations with the B button.
  • Has double the shot power of a normal ship.
  • Moves twice as fast as a Speed 4 ship.
  • Unaffected by powerups; all Shot and Bomb items are converted to score. For rank considerations, Uotaro is always at power level 0, resulting in drastically slower enemy bullets.

Uotaro's combination of flexibility, extreme speed and low rank allow it to be basically wherever it wants at any time, obliterating everything in its path while minimizing the logistics of collecting Cyborgs. However, that same speed can lead to instant death, and there's no option to crutch-Bomber past the few sections which can stand up to Uotaro's firepower. While typically the highest scoring ship within stages, Uotaro's lack of Bomber lowers its final clear bonus and locks it out from certain tricks.

Items

Icon Description
Dangun item main.png Power-Up
Main Shot
Increases the strength of the player's main shot, up to 3 times.
Equivalent to 5 Cyborgs when fully powered up.
Dangun item way.png Power-Up
Way Shot
Increases the strength of the player's side shots, up to 3 times.
Equivalent to 5 Cyborgs when fully powered up.
Dangun item cyborg.png Score
Cyborg Discomen
Increases the chain counter by 1 point, up to 999, then awards points equal to the chain.
More of them drop from enemies if speedkilled.
Multiplier value is reset to 1 if even one leaves the top of the screen.
Dangun item bomb.png Bomb Item
Bomb
Gives the player an extra bomb to use. Maximum number of bombs in stock is 4.
Equivalent to 5 Cyborgs at 4 bombs.
Dangun item 1up.png Extend Item
1-Up, Life, Heart
Increases the player's life stock by one.
Only appears when the player collects 2000 total Cyborgs. Chain gained from collecting powerups does not count.

Gameplay

Concept


Dangun Feveron is a Caravan principle game: All stages are a fixed length, but destroying targets quickly will cause more to appear. Each stage is divided into one or more "tables" of enemy waves that switch at fixed points. Completely clearing an enemy table before it switches out will cause it to loop and start over, providing a constant supply of targets.

Although the concept is simple, the details are more complicated. The game does not check for cleared waves continuously; it uses discrete intervals which vary by the waves in question. In some cases missing one enemy will cause a delay, while in others only specific enemies need to be destroyed to advance.

No-missing the entire game will cause a TLB to appear after the stage 5 boss. Infamously, this TLB is bugged on the Japanese version of the game, and is unable to kill the player unless a bomb is used.

Score mechanics


A large enemy releasing Cyborgs.

Flying enemies killed quickly will drop Cyborgs, which will drift to the bottom of the screen, then bounce to the top and disappear. Each Cyborg collected increments the chain by 1, then gives points equal to the chain counter. Letting any single Cyborg escape will reset the chain counter to 1. The point value of all destroyed targets is also equal to the chain count. The chain maxes out at 999 per stage.

The number of Cyborgs dropped by each enemy decays over time at a rate determined by the enemy type, down to 0. Boss parts also decay in Cyborg count, and a timed-out boss will drop nothing.

Cyborgs dropped by killed enemies appear in random positions inside the enemy's collision hitbox. Cyborgs drift in a fixed pattern, changing direction every second, but their initial timing and direction is random. Cyborgs near the edges of the screen will be forced away from the edge.

Up to 50 Cyborgs can be on screen at once. Additional Cyborgs past this limit simply don't appear. Cyborgs are emptied from memory when the floating text attached to them goes away, not immediately after picking them up, which can lead to some deceptive timings.

After defeating a boss, the player is given a boss bonus of

current chain * stage Cyborg total

up to 9992 or 998,001. Timed-out bosses do not award a bonus.

Upon clearing the game, the player is awarded 500,000 points per spare life and 100,000 points per spare bomb. If the player defeats the TLB, they are instead awarded 1,000,000 points per life and 200,000 points per bomb.

Bomber


Difference in Bomber damage when used on the stage 2 boss. From top: Type A, Type B, Type C

All Bombers have the same duration, approximately 2 seconds. While the Bomber is active:

  • There is a damaging effect, which varies by ship type. Type B has a slight delay before its first lightning strike lands.
  • The player is immediately and completely invincible.
  • The player's speed is increased to beyond Speed 4.
  • The player can use weapons as normal.
  • All Cyborgs on screen freeze.
  • New Cyborgs cannot appear.

After the Bomber ends, the player is shielded and invincible for a further 1 second. Movement and Cyborgs behave normally during this invincibility.

Since the score bonus for collecting excess Bomb items is low, and the reward for a no-miss is very high, players are encouraged to use them liberally. Bombers can also be used to freeze escaping Cyborgs, to speedkill item carrier waves, to skip troublesome but low-scoring enemies, and can be deployed in advance to abuse the ending invincibility which does not interfere with scoring.

Stage Number of Bomb items
Stage 1 0
Stage 2 1
Stage 3 2
Stage 4 2
Stage 5 4

Rank


Rank affects enemy bullet speed, and in fewer cases firing rate. Rank is primarily determined by stage and powerup status. Due to its lack of powerups, Uotaro experiences significantly lower rank throughout the game compared to the normal ships. Strategic rank management is nonexistent, and during the final two stages rank reduction is minimal.

An incomplete explanation is below for the curious.?

Basic rank

Basic rank varies through decimal values 0-63.

Each stage has a minimum rank value. These are affected by the difficulty dipswitch in the service menu.

Stage 1 13
Stage 2 23
Stage 3 23
Stage 4 43
Stage 5 53
Time Attack 25

At the start of each stage, the rank increases by the difference between the current and new minimum. For example, going from stage 1 to stage 2 will increase rank by 10.

Basic rank increases gradually over time, and quickly by powering up. Increasing score or collecting excess powerups does not influence it.

1st, 2nd powerups 0
3rd, 4th, 5th powerups +4 each
6th powerup +2
Bomb in stock +1 each
Extra life in stock +1 each after all other factors (i.e. affects minimum rank)

On death, basic rank is set to the stage minimum. After respawn, it increases by 3 for the player's refilled bombs, then 1 is subtracted for the lost life.

Basic rank is truncated to 63 at the end of the calculation. This has a marginal effect on stages 4 and 5, where bombing at maximum rank may not reduce it, because the true rank is above 63.

The final basic rank can be watched at RAM address 0x1052C9.

Cyborg rank

Although collecting Cyborgs does not affect the game's difficulty, missing them does.

The total number of lost Cyborgs is stored at the word address 0x105110. The counter persists for the whole game through continues and is only reset upon a game over.

Cyborg rank doesn't affect everything that basic rank does, increasing the speed of many aimed/semi-aimed bullets incrementally as more Cyborgs are lost. The two rank types are cumulative, but in what exact way is currently unknown.

Other

In some runs, an additional, seemingly permanent, increase in bullet speed can be observed at the start of stage 5 (roughly a 12% increase). The trigger for this is unknown. It may be related to both the no-miss flag and high scoring, but apparently not either of them in isolation.?

Strategy & Techniques

The game's announcer explains its scoring principles rather well.

  • Don't Lose It (Aim for 999 Disco People)

Maintaining a 999 chain until the end of the stage will result in a huge boss bonus of 998,001 points. For all score-viable shots, this is possible in every stage past stage 1, contributing just under 4 million by itself.

  • Watch Out!!!

Defeating the TLB will award a second boss bonus (potentially 998,001) and will double the clear bonuses from spare lives and bombs. Due to the TLB mandating a no-miss, and the TLB invincibility bug in the JP version of the game, reaching the TLB should guarantee at minimum another 3 million from spare lives.

  • Hurry Up!

Once a 999 chain has been reached, scoring stops scaling multiplicatively. Making significant score gains becomes dependent on dense "cash-out" waves that offer sheer volume of Cyborgs and/or enemies to kill. Advance the waves as efficiently as possible to loop these high scoring areas.

Pointblanking


Type B pointblanking with all three shotstreams. The red box approximates the part of the boss being hit.

The most efficient way to damage a single target is by using full-auto shot at close range. Successful pointblanking causes a large pink hitspark to appear. Due to the size of the player's projectiles, it's not necessary to be extremely close to do full damage. Type C will need to get closer than the others due to the width of its side shots.

Bomb pointblanking

While equipped with the Bomb Power Shot, rapidly firing Bombs by pulsing the A button while as close as possible to the target will do huge damage, far exceeding shot pointblanking. This is a great way to get damage in between boss phases, since Bomb ships otherwise struggle with boss speedkills.

Shooting offscreen enemies


Enemies off the left or right screen edges can be shot before they appear. Cyborgs dropped by such enemies will appear normally. Type A's shot lacks the horizontal range to make use of this, which can be mitigated by picking A-Bomb. An incredibly important mechanic to play around throughout the game, facilitated further by the below technique.

Whipping


Example of whipping. By the time the shots on the left have connected, the player has already moved close to the right edge.

A common shmup technique that is particularly effective in this game due to the player's high movement speed: Abusing the travel time of projectiles to commit minimally to an anticipated enemy spawn before moving away to do something else. This is most useful for Type B as its shot angle gives it more margin for error, and Type C usually has more efficient approaches to the applicable situations.

Edge-braking


Another common shmup technique. Moving diagonally while pressed against a screen edge will reduce the player's speed to 2/3rds, allowing for more precise control. Using this can aid navigating dense areas such as the stage 2 boss final pattern, the turret battery at the end of stage 4, or the stage 5 boss opening pattern.

Short Roll


While minimal Roll charges aren't effective at damaging tough enemies, they pierce just as well. This makes them ideal for sniping zako or item carriers that are blocked by ground targets, or for quickly taking out turret columns. Notable applications for short Rolls are the train section at the end of stage 2, the large square turrets in stage 3, and the turret battery sections in stages 4 and 5.

Specific Strategy

Stage 2: Laser turret grid


Whether a turret shoots or not when it flips open is random; however, the turrets open in a fixed sequence, allowing this section to be routed to some extent. At the very least, the first two turrets on the far right should be taken out immediately before the zako start arriving. The stretching "lasers" are actually three needles stacked on top of each other with slightly differing speeds.

Stage 2: Midboss area


Post-midboss wave strategy. Collecting all Cyborgs on the left while moving to the top simplifies the following wave.
Appearance order and positions of the first six-4-way wave. The next wave is the same, but mirrored horizontally.

Pre-firing a Bomber with the correct timing and then pointblanking the midboss will kill it instantly after the Bomber ends without losing Cyborgs. Type B should avoid riding on top of the midboss while invincible as this may make its Bomber projectiles do less damage.

Immediately after the midboss, speedkill the pair of medium enemies entering from the top left, then move down and right to misdirect the bubbles fired from the pair on the right. This will leave a natural path to clear up the Cyborgs on the left side before advancing through the two item carriers that follow, ending with the player at the top right ready for the start of the next wave.

The next wave is made up of two rows of three 4-way medium enemies which arrive in a R-M-R-L-M-L sequence, followed by the same formation horizontally flipped. Position assertively, staying as high up as possible (without ramming them) and they won't get a chance to restrict your movement. Using a regular ship, kill the first wave R-M-R-M-L-L (spawn order 1-2-3-5-4-6), detour to the right to clean up Cyborgs to avoid hitting the item limit, then kill the second wave L-L-M-M-R-R (spawn order 1-3-2-5-4-6). Uotaro can simply kill all the enemies in the order they appear.

Stage 3: Rail turrets


Note the shot hitsparks. Turrets are continuing to spawn near the top left even though the rails have scrolled away.

The third section of stage 3 is introduced by a bridge zone with a column of respawning rail turrets on each side. Wedging the ship against the left or right edge while pointblanking the turrets will lead to them being continually killed and replaced every few frames, doling out a massive amount of points. Additionally, positioning the ship in a specific way can cause the game to continue replacing the turrets after the point it would normally stop. Video of turret glitch positioning

Performing this trick will overload the sprite limit, making survival unrealistic without the use of two or three Bombers. Uotaro, which lacks a Bomber, is unable to fully take advantage of it.

Ship type Typical kills with shot + 3 Bombers
Type A ~510
Type B ~420
Type C ~515

Stage 4: Table 3


This is the only part of stage 4 where a great number of points can be gained or lost. Players are encouraged to rush to the end of the table for a series of cash-out waves that can total 150,000 to 200,000 points. It is also the only part of the game that involves enemies appearing at the bottom of the screen. Routes vary with shot type, but typically at least 1 Bomber is used either to wipe out the turret battery for safety, or to save time on the reverse waves. Video example of the table with B-Roll

TODO:

  • Stage 1: Wave shortcuts
  • Stage 3: Wave despawn
  • Stage 3: Type 2 despawn
  • Stage 3: 3-Boss strategy
  • Stage 4: Delayed table 2 spawn
  • Stage 4: Table 2 -> 3 strategies
  • Stage 5: Station 1?
  • Stage 5: 5-Boss strategy, missile barrage
  • Stage 5: TLB patterns?

Video Reference

See the Video Index.

Misc / Curio

Stage 3 boss glitch

During the first phase of the stage 3 boss, destroying either of its two side nodes will push it in the opposite direction. Destroying the left node first, positioning the boss to the extreme left, manipulating it to move left and then destroying the right node can push it off the edge of the screen. This causes a coordinate overflow error, resulting in the boss believing it's actually on the far right. It then tries to correct its position back to the middle by continuing to travel left, further and further off the screen until it wraps around and reappears on the right side. Video of this glitch

Inspiration

Dangun Feveron's odd development circumstances and idiosyncratic nature lead to speculation on what could have influenced its design. The game's art style, color palette and space setting (unusual among CAVE games) bear much similarity to Toaplan's Tatsujin. The main game's structure resembles NMK's Thunder Dragon 2, while Time Attack mode is based on Caravan Festival console games.