Jelly Potato would be a PvP game that's based in a large nearly empty room, slimes and punch guns.

The Basis of the hilariously named "Jelly Potato" is quite simple. You have a punch gun and no shield within two seconds of the start Jelly about four or so slimes pour out. These Jelly can instantly kill you making them fairly dangerous. They're no threat naturally but other players can't wait to punch them into you.

The room: By Tommy Wiseau
The play arena is about one third of the Bomb Network but it's filled with blocks that players cannot cross launched monsters, may.

The Punch Gun
The punch gun operates on a short charge before an attack and pushes a slime across the map.

Tactics:
The game will need a fair amount of tactics and quick thinking. You might not want to launch a Jelly before it starts it's attack animation. This might have interesting tricks involved. Such as launching a jelly mid attack.

This is just a sketch. Suggestions are more than welcome.