Well I decided to make a new demo which has a lot of new things.
Characters - Sonic Tails Amy and Shadow, They each have their own ability's and the stage is slightly changed so it makes use of the characters ability's.
Other Things - It features menu's and one mini game, The mini game is Street Boarding where you have to press a button on a ramp to do a trick and it gives you some score, Sometimes if you don't you die, And there are still some bugs in the game but their all tiny ones, I also changed the background for Bayside Harbor, I made the graphics much better.
Controls - Well you need to know this, Press enter to pause, Use the arrows to move and Z to jump, Press down to crouch and while crouching press Z to use spin dash and press down while moving to roll, Press X in the air to use Quit Spin which is very useful at times especially for Tails's fly.
Sonic's Controls - Press Z while in air to use the homing attack, If there are no enemy's around and you press Z while jumping you use Jump Dash, Press X On ground to use Spin Attack.
Tails's Controls - Press Z while jumping to use fly and you go up then go down real slow, Press it again you go up but tire out, The fly is based like Sonic Adventure's, Press X on ground to use Tail Whip.
Amy's Controls - Press Z while jumping to use double jump, It's kinda powerful, Press X on ground to use Hammer Attack.
Shadow's Controls - Same Controls as Sonic, Though his physics are changed, And his Homing/Jump Dash is changed big time too.
Trailer - http://www.youtube.com/watch?v=teVcS9uIuJk
Download Link - http://www.sendspace.com/file/umh3o6
Please reply and tell me what you think.