the ropegun is a ridiculously busted item and i love it so much because of it
basically, while the ropegun is active, the player has zero collision with floors/ceilings (collision with vertical walls still works fine though). this is most easily demonstrated by standing on any solid ground and pressing down+b. the player will just phase through the floor.]
it goes without saying, but with enough mastery this kinda makes walls more of a suggestion.
probably the most busted part of this is that if you use this to clip through the upper boundary of the hopworld, ou get teleported to mount hop early. hopworld speedrun strats 2025. (and, if you place a teleport flag in the hopworld before, you get to teleport back out of mount hop.)
in conclusion this is why i think the ropegun is one of the most fun items in any videogame ever. thanks for coming to my tedx talk