hey skycharger sorry that you encountered numerous bugs with the game. In regards to your first point A. When you experienced this issue did the rotating platform continue turning even when the power cell hadn't been placed. In terms of your point B. Could you explain a bit more as to the issue you were encountering ? Is 'Moving objects' in reference to the retracting floors and moveable pillars ? With point C. I'll definitely add in a kill zone to respawn the player. However could you explain to me exactly how you managed to fall through the ground so I can trace the issue. I used box colliders for the environment and I'm very interested to discover how you unfortunately managed to fall through the map.
A. Removing the power cell when this glitch has occurred causes it to ' unwind'. (if it has rotated, for example, 780 degrees then it will take 780 degrees of reverse rotation to get back to its starting point.
B. I'm talking about the retracting floors. (The moving pillars haven't shown this problem, but that could be due to the colliders having time to catch up)
C. I had tried to jump on the rotating platform, but I know from some personal experiments that box-colliders can fail if your velocity exceeds their size. The simplest solution i've found is to give the player-character its own velocity-sized box-collider. (EG: when falling at 40 points per frame, this collider goes from the top of the player to 40 points below him/her to detect objects he/she would otherwise 'warp' through.)