Play Jelly Boy (Europe) (Proto) Online

You fling a wobbly jelly blob through springs and gaps—physics feel like a drunk Earthworm Jim, but in a good way. Weird prototype energy, but that janky bounce grows on you.

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Game Overview

Jelly Boy (Europe) (Proto) is one of those weird, forgotten Genesis games that makes you go, "Wait, how did this not get a full release?" You control a stretchy, bouncy blob of jelly—think if someone took the physics from Earthworm Jim and made everything 300% wobblier.

The first level throws you right into it: you’ll be flinging yourself off springs, squeezing through tight gaps, and accidentally bouncing into enemies because, yeah, momentum is a suggestion here. The controls take a minute to click—your jumps have this delayed, jiggly follow-through—but once they do, it’s oddly satisfying to slingshot yourself across gaps like a rubber band.

It’s definitely a prototype (some animations cut off weirdly, and the difficulty spikes randomly), but there’s charm in the jank. The colors pop, the music’s got that classic Genesis bass, and honestly? More games should let you play as a sentient gummy bear. If you dig obscure platformers with weird mechanics, give this one a shot.