I think I reached the same spot as people below, it must be in the second location you access from the main room, there are two ramps in a row and you can ascend the second one.
Combat is a bit unexciting (just speed up the cooldowns and it'll be alright, in my opinion) but movement feels right, the dungeon is good and I like your use of the theme, it's to the point but definitely enhances the gameplay of the game.
The game is fun, thanks for sharing, I will play the fixed version in case you provide one.