I crashed the game after the cultist boss showed up by just walking off-screen slightly.

Is there anyone this could be used with Nuclear Throne Together? My friend likes the game, he thinks it's good, but a huge problem he has with it is that it runs at a locked 30 which this version let's you change.
I want him to play it with me but he won't because of this, he says it'd fix quite a bit of his problem with the game if he could play at 60.