Cuphead

Cuphead is a run-and-gun action game focused primarily on boss battles. Its visual style is modeled after 1930s cartoons, using traditional hand-drawn cel animation, watercolor backgrounds, and original jazz recordings. Players control Cuphead or Mugman in single-player or local co-op, traversing themed worlds, acquiring new weapons, and unlocking super moves. The game includes both boss encounters and side-scrolling platforming stages.

Summary: IGDB