I'm sick and tired of this being regarded as one of the most difficult mechanics on Flowlab to code - so lo and behold, here's that cool little precision platformer feature that allows you to control how high or low your jumps are.

Arrow keys to move. Holding UP longer will give you a higher jump, releasing it any amount earlier will give you a smaller jump.

Code is in the Player.

Don't credit me for this, just take it and go. You're welcome.