WASD does not work, and you cannot use up arrow to jump making even the starting level impossible with the amount of ground enemies present
Viewing post in Max the Elf ♂ v5.02! comments
use space bar to jump, and arrows keys (minus the up arrow) to duck (down arrow), walk forward (right arrow), and walk backwards (left arrow). E does a kill all attack (3 charges per chapter attempt), and q is basic attack.
that's all the control tips I can give, even though most of it was telling what the intro says