Physics play an important role in the game: by running into special "material changers", your ball can assume one of three different materials, each of them having a different weight:
- Paper: Being the lightest has its privileges - you can zoom easily across pits, make use of floor fans, and climb steep slopes - but your journey will be brutally interrupted when you come across any sort of obstacle, since you won't be able to push it out of the way. Incidentally, it's rough composition also makes slower than the other 2 ball materials.
- Wood: The average ball. It can negotiate its way up most slopes and push some obstacles out of the way; but it still cannot do some things.
- Stone: The heaviest one, and thus some gaps and slopes are impassable for it - but it can push heavy objects such as bridges, switches or other stone balls which inexplicably happen to lie around and block your way.
This game shows examples of:
- Crate Expectations: Who scattered all these crates throughout the levels?
- Floating Platforms: Not all. Some are set up on incredibly long poles that seem to reach down hundreds of kilometres onto the planet in the void below.
- Flying Saucer: Pops up in the ending.