- W: Move forward
- A: Turn left
- S: Move backward
- D: Turn right
- Q: Strafe left
- E: Strafe right
- Space bar: Move up and zoom out
- X: Move down and zoom in
Goal: Move all of the discs from their current platform to the target platform (under spotlight).
- Only one disc can be moved at a time.
- A disc can only be moved if it is the uppermost disc on a stack.
- No disc may be placed on top of a smaller disc.