Has anyone here checked out Polyball yet? It has very similar mechanics to MB with a much different style of environments. It is very focused on speed running and achieving leaderboard spots.
There aren't many players out there yet and thought this community would really appreciate the development effort and excellent level design going into the game. The developer seems semi-active but the game seems to be progressing smoothly and it is in a finished state now.
Lemme know if any of y'all play! Looking for some friends to collab with.