Crushed that heart baby.
I feel like I lucked into the switch to enable to press (Though I didn't know what it was), and then spent the rest of time just mapping out the section after the teleporter. I did wonder what some of the raised plates were? They made a sound when I stood on them but they weren't pressure plates?
I enjoyed the juciness of the combat, I'm not exactly sure how the progression works but I was just wrecking entire groups of bad guys the whole time with relative ease, and because I explored a ton I had so many potions (Other than the ones I used to weight down some pressure plates) .
I liked the dark creepy under-mountain aesthetic with the depth fog and ominous heights of the cavern, I actually had a great time exploring the space but I would have liked a map or something so that I could keep track of where I'd been, it did take me quite a while (about 35-45 minutes or so) to find my way through the space and find the heart and everything, but I'm also quite bad at that kind of self directed space awareness.
My absolute favorite part about this entry is the verticaility. It added another level (pun intended) to the exploration, and the implementation of going up and down different heights of block was really well implemented and fluid. The level itself seems like it must have taken quite a bit of time to put together because there is a lot of different buildings and pathways and stuff!
Really well made entry, nice job :)