I know of bonuses you can earn in Diablo 3 such as Massacre. It's very simple in single-player, because you're the only one doing any killing.
But what happens in co-op?
- Do all players contribute towards the same experience bonuses? I.e, if I destroy 5 barrels while my co-op buddy destroys 3 barrels, do we get an 8 item destruction bonus?
- Does each player battle out for their own bonuses and (essentially) ignore other players?
- Something else entirely?