I did this without permission, I'm sorry, but I did add new features like: b to heal max hp and space for easy mode on and also screen shake when dusttrust blocks.

Exe. Version: https://gamejolt.com/games/underswap-dusttrust-scratch-ver/816377

Original: https://scratch.mit.edu/projects/453265253

My remix: https://scratch.mit.edu/projects/865135035/