Really entertaining concept and I think your execution is good too, I had a lot of fun with One Potion Please and even though they are different games I can tell this is shaping up to be similar quality. I like the potential for different interactions depending on your route and state of being, and even though there is reused art the first person vantage point is used well. The character customization seems to have a lot of potential, especially when different classes get added to the mix. And the dialogue and script in general were very fun - I know the descriptions says light on story but the interactions in the dungeon and some of the game over screens were pretty enjoyable.
I would say that some of the sound effects seemed to be way louder than others which was kind of jarring at times - it was nice hearing the fun boingboinging of me wiggling my character around but then the bridge collapse sound nearly gave me a heart attack! But beyond that minor nitpick I'm really excited to see what unfolds, and hopefully with that shortstackifaction tag there will be some really fun goblin/shortstack cursed transformations and hijinks in the future (the kobold was super cute, and I'd love to see Razor from OPP again!).