1.treadmill that will roll drive away like a single tank tread
2. a hovering treadmill that hovers
3. a bread treadmill made of bread
4. a spinning treadmill that spins like a top
5. a missile treadmill that flies like a missile
6. a chaotic treadmill that flies, spins, and knocks the player around a lot
7. a musical treadmill that sounds like an instrument