Arrow keys or mobile. 2nd maze level is glitchy. When the boss shatters from stress, jump on him! He will spill his internal organs. When you see a snake, avoid getting bitten. Remixing is encouraged. You can reduce glitches and make this WAY harder if you want. Right now it is too easy.
Algebraic proof, remove the trail in the original game, it acts as your character and when the boss hits it it kills you