Hey good work y'all! I tried it in the browser first, and i guess ctrl+e is the shortcut for firefox to search something, so It didn't quite work, but then, I downloaded it, and was able to get through.
The block kept disappearing whenever I tried to make it big enough to use as a bridge over the spikes, so I opted for my own solution, wherein I grabbed the block, hopped on, and flew my way over all the puzzles.
This is, undoubtedly, not what you intended, but I am a type of player/person that derives joy from creatively solving problems in unintended and unexpected ways, so this was actually quite ideal for me!