This is my entry for the contest. To move the first ninja use WASD. To throw a shuriken for the first ninja, press Q. To make the first ninja use their spear press Q, and E to throw a shuriken(L and R to aim) To move the second ninja, use arrow keys to move, M to use spear, and N to throw shuriken(mouse to aim)
Physics not good... Also will be bosses