Loved the premise, the look of it, the strategy needed to proceed etc.
Could have done with being able to go quicker, the slow pace of the player frustrated me. And as other have said, bit of feedback to what hurts. I walked through 3 fires before realising I shouldn't :P. And what I thought was a purple heart I couldn't pick up and I think hurt me too.
Few simple tweaks would make for a really fun game that could easily transport to mobile etc or something. I like the different level colour themes too :).