Use the arrow keys to move! If you're complaining about the spin dash, it will come in another demo. This is not the final game, this is only a demo. *glitch* moves: Wall jump: Latch your head to a floating wall, then quickly press left (or right, depending on the wall) and right (or left) in quick succession. Wall clip: Put your nose under a floating block, and jump. After that, press left or right to clip through it.
Scrolling mechanism by @griffpatch. Sonic sprite created by SEGA. Music by Masato Nakamura. All level design by me