Kid Chameleon follows a shape-shifting hero through a sprawling gauntlet of over a hundred levels filled with hazards and hostile creatures, where touching the flag at each stage's end opens the path forward—though scattered teleporters offer shortcuts and detours that can skip ahead or lead down entirely different routes through the game. The protagonist's defining ability lies in collecting masks that grant temporary transformations, each persona bringing distinct combat powers and health pools that prove essential for tackling the specific challenges each level presents. While the constant variety of forms keeps the platforming fresh and demands different tactical approaches, Kid Chameleon can also dispatch enemies the traditional way by jumping on them, a riskier maneuver that may result in damage depending on the foe. The quest culminates in a confrontation with the mechanical tyrant Heady Metal, though reaching that climax requires mastering diamond-powered special abilities and navigating the game's punishing gauntlet without the luxury of a save system—lives are lost through taking too much damage, falling into bottomless voids, or letting time expire.