P1 - Sans 1 - Bones 2 - Gaster Blaster at cursor. 3 - Gaster Blaster Ring. 4 - Annoying Dual Bone Thing you have to move in circles to avoid 5 - Some Bone Shuriken Thing 6 - Combo of the dual bones, a blaster pattern, and gaster blaster ring. 7 - Square Blaster Pattern 8 - Plus Blaster Pattern 9 - Another combo. 0 - Literally unavoidable death blaster, but it takes lots of time to charge back up. P2 - Soul Arrow Keys - Move M - Use Fight Button
UNDERTALE by Toby Fox. Megalovania by Toby Fox, if it ain't obvious.
