Lately I've been playing gladiator and gladiator+random mode a lot. In one match where I was owning with a feedback/shadow strike/darkness/death orb random,
all the players left. Thinking I was left with my dick in my hand like other modes, I was pleased to find out that I auto won the game.
So if you don't like leavers, play glad mode, and if everyone leaves, you still beat the game!