Play Jelly Boy Online

Jelly Boy came out on the Game Boy in 1994, developed by Probe Software and published by Ocean. It was one of those quirky platformers that felt right at home on the handheld, a time when developers were willing to experiment with strange concepts and physics.

You control a pink, gelatinous creature who can morph into different forms to navigate levels. The main goal is to collect musical notes scattered across each stage while avoiding hazards and enemies. Key mechanics include bouncing on foes to defeat them, inflating into a balloon to float across gaps, and squeezing through narrow passages. The pacing is fast, and the difficulty ramps up significantly in later stages, demanding quick reflexes and smart shape changes. It feels frantic and inventive, a constant test of your ability to adapt on the fly.