The Platonic solids are the tetrahedron, the cube, the octahedron, the dodecahedron, and the icosahedron. Each one is a mathamatical dual of another.
Cycle through the solids with left and right and move with W-A-S-D
To stop one of the solids you must be using it's dual.
The object is to protect the spheres until the final wave.