Sprite Swap. A for jump action, arrow keys for movement. You can change the keybinds with ^ button. Type in "(direction) arrow" for arrow binds, and "enter" for enter button. shift keys don't work.
Credits to @Zaneunderscoreuhh for the original project Credits to SEGA And Sonic Team for sonic the hedgehog. Credit's to Conduit for some of the super sonic sprites And credits to the other people.