I think found some glitch that make u go out of the bounds, i think u need to have chigaeshi no tama to survive cuz the first time i got it i just immediately die, the trick is to change character(like from frost to pyro) as u go into another area, i'm also think it's a small frame window idk how frame exactly but it is like exactly when u go into the transition from area a to area b.

This is already known, it's in the guide section under "swap zipping". Thanks anyway though.