Instructions
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W A S D - Slam ( F for bonewalls )
C V B N M H L G K J R T Y O - Bone attacks
1 2 3 5 7 8 - Gaster blasters
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Game by @Modeck
Engine by @Nikarosi
Megalovania by toby fox (the maker of Undertale and deltarune)
Megalovania 9th anniversary by Amatsuki Uta.