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Sonic Jam (Sega Saturn)

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Title Screen

Sonic Jam

Developer: Sonic Team
Publishers: Sega (JP/US/EU), Tec Toy (BR)
Platform: Sega Saturn
Released in JP: June 20, 1997
Released in US: July 31, 1997
Released in EU: August 28, 1997
Released in BR: September 14, 1997

AreasIcon.png This game has unused areas.
ModelsIcon.png This game has unused models.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
BonusIcon.png This game has hidden bonus content.

ProtoIcon.png This game has a prototype article
BugsIcon.png This game has a bugs page

So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?
To do:
  • Quite a few unused animations for Sonic in Sonic World, including some from Sonic 3D's special stages.
  • Sonic 2 mistakenly uses Sonic 1's invincibility theme, but the correct one is still on the disc (as a 3-part AIF file).
  • Should probably make a Notes page for different file formats for easier access.

Sonic Jam is a compilation of the four Genesis Sonic titles (Sonic 1, Sonic 2, Sonic 3, and Sonic & Knuckles) plus bonus content in the form of Sonic World (the precursor to Sonic Adventure) and a number of different gameplay options.


Read about prototype versions of this game that have been released or dumped.
Prototype Info
Read about notable bugs and errors in this game.

Game Changes

To do:
Document changes in the other games.

Rather than being emulated, the code from the original games has been ported to the Saturn. Because of this, more substantial changes can be observed compared to other Sonic compilations. Notably, these versions of the games use CD audio.

Unused Objects

The Sonic World engine has a number of unused objects, most of which are null. However, two of them still somewhat function and have models.



Object ID 0x2B is a monkey that walks in place. You can walk through it and he does nothing else. Probably meant to be in a tree.



Object ID 0x2C is a seagull that just sits in place. Probably meant to be in the sky. You can walk through it too.

(Source: evilhamwizard on Sonic Retro)

Unused Animations

To do:
Any way to enable these with hacking or cheat device codes?

Sonic World is actually based on an early prototype of Sonic Adventure! Sonic Team didn't want to waste the work they did when the game was moved from the Saturn to the Dreamcast, so they just put what they'd finished in Sonic Jam as a bonus for players. So it's no surprise that Sonic Jam's code contains unused animations reflecting the same animations used for Sonic in Sonic Adventure.

Unused Music & Sound Effects

A short, repetitive music loop.

Some kind of honking sound effect.


Isolated Sidewalk

Please elaborate.
Having more detail is always a good thing.
Specifically: How do you "glitch through the wall"?


Behind the waterfall of Sonic World is a piece of sidewalk that can be seen by fiddling with the camera. It's possible to glitch through the wall via jumping through the waterfall by a certain angle, but why is it there...?

Hidden Desktop Images

These can be found by inserting the disc into a computer's CD-ROM drive and looking in the /Extra directory.