The general atmosphere, especially the music, is pretty nice and I like the concept of the game.
The controls could need some improvement. The jump is too fast, it needs more airtime and control. The movement is a bit to slow. I wasn't even aware that you can run. I tried it with the controller and the button layout was a bit weird. Totally playable but jumping with B is rather unusual.
The energy system or heat system was fine. It's nice to have some sort of limitation to your abilities but if you run out energy you can just move the previous room and pick up the energy orbs that respawn. Balancing such system and "puzzles" is hard but in the case you can just basically grind your way back to full energy to continue.
For your first platformer this is totally fine. Making a platformer feel really good is hard work. I think with some minor improvements would improve your game a lot.
Overall a nice entry. Good job!