Sonic Jam (Game.com)

Sonic Jam
Developer: Tiger Electronics Publisher: Tiger Electronics Platform: Game.com Released in US: July 10, 1998 Released in EU: July 10, 1998 This game has unused graphics. This game has unused sounds. This game has unused text. This game has a prerelease article

The Game.com Sonic Jam is not actually a port of the Saturn version, but rather just a collection of levels inspired by Sonic 2, Sonic 3, and Sonic & Knuckles mixed with bleepy music, ugly black-and-white graphics, inexcusable bugs, and an abysmal framerate that makes the gameplay very slow.

In other words, it ranks up there with Sonic '06, Sonic the Hedgehog Genesis, and Sonic Boom: Rise of Lyric as being one of the worst Sonic games.

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Prerelease Info

Cheat Codes

• Extra Life - Press A, A, A, D, D while the game is paused.
• Invincibility - Press A, B, C, A while the game is paused.

Unused Graphics

Early Graphics

To do: Early versions of sprites for Knuckles are used instead of the final ones.

A larger HUD that was seen in pre-release material.

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Graphics for the Sonic & Knuckles banner and Mushroom Hill intro graphic, looking very much like their Genesis counterparts. The final game doesn't bother with Zone names and instead just uses Act numbers.

"No Lock On"

Presumably, Sonic & Knuckles would have had support for "locking-on" the Sonic 2 and Sonic 3 cartridges for new content, similar to the Saturn version. This would be the icon shown when playing Sonic & Knuckles by itself.

Leftovers From Other Games

Audio

Present at 0x1072D8 and 0x1078F2 are a female and male moan, respectively, from the Game.com version of Batman & Robin.

Text

Present at 0x525CF is some text from the Game.com version of The Lost World: Jurassic Park.

A;B;C;D;E
F;G;H;I;J
0;1;2;3;4
5;6;7;8;9
HARDING
TEMBO
AREA
HUMVEE
MOTORCYCLE
CARGO
CARRIER
RV;MOBILE;LAB
SNAGGER
RV;3
STEGOSAURUS
PACHYCEPHALOSAURUS
TRICERATOPS
PROCOMPSOGNATHUS
VELOCIRAPTORS
TYRANNOSAURUS;REX
PTERODACTYLS

Misplaced Rings

In Sonic & Knuckles Act 4, a set of rings which were meant to be placed in a loop are shifted slightly to the right and up of their intended positions.