R-Type series

• R-Type
• R-Type II
• Super R-Type
• R-Type Leo
• R-Type III: The Third Lightning
• R-Type Delta
• R-Type Final
• R-Type Final 2

(Canon chronological order: R-Type > R-Type Delta > R-Type II / Super R-Type > R-Type III: The Third Lightning > R-Type Final > R-Type Final 2. R-Type Leo is set in a parallel universe.)

Spin-offs: The two R-Type title spin-offs are not SHMUP games, but turn-based tactics games set in a parallel universe.

• R-Type Tactics/R-Type Command
• R-Type Tactics II: Operation Bitter Chocolate

The following Irem titles are canonically related to the R-Type universe because these fighters are playable in R-Type Final and R-Type Final 2.

• Mr. HELI no Daibōken/Battle Chopper
• Image Fight
• X-Multiply
• Armed Police Unit Gallop/Cosmic Cop
• Image Fight 2