I suggest minigames, like supreme stickman duelist,
A boss, Giant robot vs 2 normal robots, select weapons, Survival mode, Minigames like soccer, or other things, tetriz, and others
#Edit1: Add images in the select map
#edit2: and add teams
#Edit3: Better ragdoll, when I fall and I don't move the robot stands up straight and that is somewhat unrealistic from my point of view.