Thanks for the feedback, I've modified the start room to hint at how to complete the first main puzzle :)

The first room where you need to take the cube across the pit of acid and onto the switch is the only problem I have with this. That bounce technique (more akin to movement glitch) will just stop most players dead unless they have prior knowledge that that move is even possible. Perhaps design the entrance room in a way that the player will attempt to fling themselves but end up being shown this bounce technique?

The rest of the chamber is fantastic though.