Hello! Thanks a lot for giving it a try!
The hole at the end was indeed a bug! It has been patched now with the last upload, along with some issues that caused freezes later on. I'll definitely have to implement visual feedback though! Thanks a lot!
Nice that you fixed the issue so quickly!
I played again and got 3 floors deep :) I am a bit confused by the shop though. For example, I can purchase max stamina 100 -20, but when you buy it it goes to 140.
Hope to see you improving the game even more!
P.s. I think you need to round the value in the firing rate upgrade, it says 0.099999999994 now :0