Mode 1: Arrow keys/wasd to move. Can't move when timer hits 0. Mode 2: Arrow keys/wasd to move. Stop moving to make timer go down. When timer reaches 0, score 100 points. Mode 3: Arrow keys/wasd to aim. Shoot with x/z/space. Hold for a big shot. Mode 4: Left arrow right arrow/ad to aim. Shoot with x/z/space. Hold for a big shot. Slide your mouse/finger through multiple to unlock a challenge mode that is totally intentional and is definitely not a bug.
watch this video first: https://www.youtube.com/watch?v=SPnE7YMplCg
