Level 4 could use some redesigning IMO... there's too many of the swords being tossed and trying to dodge/recover is a pain because once you commit to a jump you're pretty much at the mercy of RNGesus to land safely and avoid being hit. I mean I like what you're trying to do: make a tough level. Also the player doesn't move fast enough to evade the swords consistently, so unless you know where the swords are gonna land it's really tough to avoid them. I think if you lower the number of swords being spawned and raise the players speed just a bit it would make a world of difference.