Arrow keys to move sonic, wasd for metal Hold up/w and down/s to charge a spindash, release to...well... release. while running, start sliding to a halt and hold down/s to perform a spin attack. ocassionally, one of them will get bored and start showing off by skidding from one side of the screen to another.
metal can go faster than sonic, but is harder to control. all sprites by me apart from the sonic in the corner please ask permission before you remix or backpack any of my sprites or code.