1CC

One-Credit Clear (1cc)

"1cc" stands for "1 Credit Clear", and refers to completing all of the stages of a game on a single credit (no continues).

Another term that is used is "x-ALL", where x represents the number of loops completed in a single run on a single credit. An example of an ALL is completing both loops of a game like DoDonPachi, which features two loops; completing a 1cc on both loops of the game is referred to as a 2-ALL.