arrow keys to move, up to jump and hover jump, space to attack (if poison ability then also control with mouse), 2 for secondary attack(hint: keep holding it throughout the whole fight) make sure ability matter gets defeated, not you. if you won then click the flag twice if you want another round!
note: the second time he uses the dark matter it will be harder to avoid being hit because some of the are real ones when others are illusions (fake) and they come in waves