click green flag twice SANS: WAS D for throwing the soul, 1 and 2 for soul gravity z+WASD for bone attacks when soul is blue E for blue and orange bones. 3 to switch between sans' attacking and dodging. Space for Gaster Blasters when soul is red. Q for bone path when soul is red PLAYER: Arrow Keys to move, M to hit fight, when fight button is hit, a series of slashes are activated. Sans will have to dodge these.
Have Fun!