Why is my while loop freezing thegame?

[Bilangus]

If your gonna finish this demake then feel free to use sprites or code from my own:

[Announcement] MakeCode Arcade Mini Game Jam #35 - Cursed Jam 3

JUMPY PLATFORMER BUT YOU HAVE A SWORD Quite possibly the jumpy platformer mod of all time! DISCLAIMER: If you are richard don’t play this before the livestream. If you are not richard also don’t reply about The Thing before the livestream. This game kinda relies on a bit of a twist. On a totally unrelated note, DELTARUNE TOMORROW!!!