Help Me

wasd for move and space to laser.

if it's laggy, try playing on the original website: https://snap.berkeley.edu/project?user=amagicmuffin&project=gameOfHelth

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school project. i make game. with snap which is like scratch but somehow slightly better (no one can tell the difference). 

help me. why did take so long on this. give me game design pointers? thank.