[bookofjoe]

2 more things that can break/go wrong/stop working resulting in mission failure.

[numba888]

1 working wheel is enough for balancing. they can be as simple as just a motor in rubber. it's more likely tail or wing will fail than both motors

BTW, here is how it works from Boston Dynamics, it can jump:

https://www.youtube.com/watch?v=LHJKGgwpWY8

[bookofjoe]

Playing your song: https://www.donutlab.com/motor/