Up and down arrows to move, press space to throw a shuriken. There are two power ups: The one with the heart tops up your health The one with the shuriken makes your shuriken extra large.
Just a bit of fun. Did not take me long to make, but I thought I would make a game besides a platformer. Play the Hacked version for an extra challenge: https://scratch.mit.edu/projects/195540636/ The sequel is here: https://scratch.mit.edu/projects/195727710/ @Will_Wam for the shuriken.