Watching a ragdoll lose its balance never gets old. Sometimes I set up a whole scene just to see what happens after one good hit. The funniest moments usually come from accidents, like a character missing the intended target and tumbling straight into something else.
The full game is already unlocked in this version, so there's more room to play around with the available tools and weapons. I don't really need a goal here. Dropping a few characters into the scene, trying something ridiculous, and watching the physics do their thing is enough to pass the time.