Sonic Crackers
So, just what is "Sonic Crackers?"
http://info.sonicretro.org/Sonic_Crackers
"Sonic Crackers (referred to as Sonic Studium and often identified incorrectly as Sonic the Hedgehog 4) is an early 1994 prototype build of the game (Knuckles) Chaotix, incorporating many of the elements that would appear in the final game.
Knuckles Chaotix: https://www.youtube.com/watch?v=fBSE3Sb4T3w
Sonic Crackers is thought to be an engine test, composed of various different game engines.
The game features Sonic and Tails, who, in the main demonstration of its link to Chaotix, are held together by rings that they carry and that are joined by an elastic force. Also, Sonic can pick up Tails and throw him upwards, to make it easier to reach higher platforms. The stages and music are also similar to those in Chaotix. There are no sound effects at all during gameplay. There are no badniks to be found, however there are spikes, and you lose rings when hitting them (even though you have none).
It's thought that the name should actually be Sonic "Clackers" and not Crackers.
Yeah, this isn't much. The levels are bare-bones, woefully unfinished, repetitive and the physics-engine is a mess, but I think it's interesting.
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