Checkers
A small solo level that one should not play if you have a headache. The author suggest's this in the readme and he is telling the truth. The entire level is made up of platforms that are constantly moving and you goal is to try to stay alive against the BoBs. BoB's is not what they seem thanks to the physics model that comes with this level. I doubt if this could be a net level, thus the solo tag. Two versions, one with a lower ceiling and a different hill, if that's what you want to call it.
Levels in map "Checkers":
N6.Checkers
N6.Checkers