Don Doko Don is a platformer game where you play as a bearded dwarf whose girlfriend has been kidnapped by a dragon and taken to its castle. Your goal is to rescue her by defeating enemies with your mallet, picking them up and throwing them at other enemies, and collecting the fruit they leave behind.
The gameplay involves navigating through levels, fighting enemies, and avoiding obstacles while trying to complete each level within a certain time limit. If you fail to do so, a winged devil will appear and try to kill you. Throughout the game, power-ups will appear that increase your power, award you with new weapons, or freeze time.
The game is divided into five areas, each consisting of ten levels. At the end of each area, you must defeat a boss in order to proceed further. With increasing power and skill, you'll unlock new abilities and become more formidable in your quest to rescue your girlfriend.