Joy Mech Fight (1993)

Joy Mech Fight, sometimes called Joy Mecha Fight, is a 2D fighting game. The game consists of a standard versus mode (single player or multiplayer) and a quest mode (single player). In the quest mode, there are 8 enemy robots per level (only 7 in the first level). Defeating the first 7 robots will cause the level's boss to emerge, and defeating this boss will allow the player to move on to the next level. The game is completed by advancing through all 4 levels. (wikipedia.org)