Jelly Boy

From Sega Retro

JellyBoy title.png

Jelly Boy
System(s): Sega Mega Drive
Publisher: Ocean Software
Developer: Electronic Arts, Probe Software
Planned release date: 1995-04[1]
Genre: Action
Number of players: 1
State before cancellation: Late in development
Status of prototype(s): Prototype dumped
Sound driver: GEMS

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Jelly Boy is an unreleased Sega Mega Drive action platform game developed by Probe Software and slated to be published by Ocean Software in February 1995. While Nintendo Super Famicom and Nintendo Game Boy versions of the game were eventually released, this version remained lost until a fully playable prototype was discovered in 20XX.


Development is presumed to have taken place around 1994 and/or 1995, with review copies being sent to the gaming press, and receiving substantial magazine coverage. Like it's released versions, Jelly Boy was originally set to be published by Electronic Arts, and a copyright credit to the publisher remains on the dumped prototype's title screen.

In 20XX, a seemingly-complete prototype was discovered and made publicly available.

Magazine articles

Sega Retro Average 
Publication Score Source
90 [2]
72 №10, p15
71 [3]
90 [4]
90 [5]
45 [6]
55 [7]
65 [8]
74 №42, p30/31
Sega Mega Drive
Based on
9 reviews
Main article: Jelly Boy/Magazine articles.

Promotional material

Print advert in Mean Machines Sega (UK) #33: "July 1995" (1995-05-27)

ROM dump status

System Hash Size Build Date Source Comments
Sega Mega Drive
SHA-1 75be8d5b305e669848b4a5a48cdcfa43b951dc20
1MB 1995-01 Download.svg (520 kB) (info) Page