Sonic X-treme Prototype + Bonus

Sonic X-treme - this is unreleased game about Sonic from 1996(?),for Sega Saturn.

The script are tells us about this thing,that Dr.Eggman are wants to build another evil machine,and Sonic needs to stop it.

Game is cancelled,development is undone,and I (or WE for this moment) only have this "engine-tests" or something like prototypes.

Then,Sonic Team and SEGA wants to create another game,called Sonic Mars,but it`s another story...