A. Stair climbing is for all intents and purposes non-functional. (it doesn't autoclimb the steps and 99 out of a hundred times jumping from step to step is auto-aborted for no legitimate reason)
B. Moving platforms should allow the player 'stick' to them. (made extra frustrating due to the aforementioned)
C. The physics puzzle in the first room with deliberate reset door doesn't seem to have a solved state. (behavior of ball (as if spork is always hanging [even after it's cut loose]) suggest that there is a state mismatch somewhere in the puzzle's coding)