Nicely done and with a variety of mechanics to get forward in the levels. As GabrielRG, I was roasted in the lava rather frequently but I admit puzzlers as this are not the type of game I play very often.
I liked the movement/action help text in the starting area. Onboarding is always good when a game does not use the usual standard actions everywhere. The SFX and the music amplified the mood even if the music seemed a little too modern for a dungeon whirler - but it was motivating nonetheless.