It is called I love to jump and hit people off props
Basically you need to push people off of the props you can jump on you also randomly get a type of block so you can build on. the more people you knock out the higher you will get on the leaderboard.
The setting Is just the sky with a bunch of props and some dynamic builds
you can put the yorp gim, the rocky west GIM, turkey GIM, and the retro blueprint gim.
The gims have blasters trying to beat up each other meanwhile some gims are building with the dynamic builds