SKTTR wrote:
In the lava world on the leftmost wall where fire spits out there is a passage to the left that leads to a room full of boxes and then another screen to the left to a miniboss. when you kill the miniboss and advance to next room to the left there is a nasty trap. I'd warp back and save. Couldn't find a solution. It always smashed me flat and when you activate one of those switches they don't seem to reset either.
That one is intentional. But you can do it if you are fast and time it right (and have Hermes' boots too). In fact, I did it on my first try, using the left pillar. The item you find there is optional, but totally worth it.

