Wow good game! I was not expecting the voiceovers, but they were great and really helped with the immersion. Loved the story and the silly in-game explanation for the random room layout. The visuals, background music, and sfx really fit the vibe!
It was a little laggy during runs, so I would suggest only generating the rooms when entered as a possible solution. I feel like the difficulty needs to be toned down (I could only sometimes clear a room on my first few runs), so maybe buff the player or debuff the enemies or even have less enemies spawn in the first few rooms of every run. It also took me a while to notice the chests so maybe you could make them stand out more like have them sparkle or something? An in-game tutorial would be nice in the future. The enemies dropping coins would be a good addition too. Lastly, as the game page mentions, the shop needs some rebalancing for sure.
Anyway, it was a fun experience with great potential!