"Acrobot" is a swinging game with user-created levels, featuring leaderboards..
Even if you just like a little swing from time to time, you’ll probably enjoy Andrew Shouldice’s prototype game Acrobot. The game prioritizes simple, fun gameplay over flashy graphics.
Grapple your polygon self through the yellow checkpoints to reach the blue exit, and compete for the fastest time on an Internet leaderboard.
Get your own music going in the background and it’s already fun to play. It has the main limitation of only one official level.