To not only make a game of Party Animals even funnier and chaotic you could add modifiers! Like a section in Custom Games that lets you maybe increase punch strength so the moment you land a punch on another player they go flying, or maybe manipulating the maps and weapons, like the black hole lab spins even faster or when holding a shovel you get boosted effects. Just overall a bunch of new "settings" that change up the game to the point where even players could make their own "gamemode." And of course the "mod menu" could be organized really well, sections like "player mods," "item mods," whatever. Hope you take this into consideration!