Good job! The vibe and story feels nice, soundtrack contributes well to the whole aesthetic. I personally liked a lot part in battle soundtrack where is starts doing fast rhythms ;D
From problems I faced was bug already mentioned by Lord Drageon, you can still play forward after all HP lost, you'll just lost any new battle instantly but enemies disappear then.
I at first didn't get that you should avoid battles lost most of my HP on floor 1, and then successfully outrunned all the enemies until the floor 6 :D
I also didn't get XP mechanic, but I guess it's not finished yet :)
And the best bit - mouth attack animation is dope! I'm not sure how mouths and eyes are related to the plot, but it was fun xD
Battle mechanics are also quite rich, you can do different many things and you definitely put a lot of effort in this part, but it's not super clear what debuffs are doing to enemies
Overall it left nice impression, and you achieved quite a lot in two weeks. Vibe is cool and felt unusual, if you add more assets with each floor it would make it several times better ;)