Stuff like the tower climb in Nier Automata with 9S and A2 climbing the tower to kill eathother, while at the same time fighting the same enemies --- http://www.imgur.com/oQHLBrx.jpg http://www.imgur.com/ah5IE8D.jpg http://www.imgur.com/USV84z9.jpg http://www.imgur.com/PSjlohO.jpg