Huh, that's strange you'd get stuck! We haven't seen a bug like that happening. Do you remember what kinda room it was? there's a room with spikes on the left that has an easy to miss enemy, ppl have thought they cleared the room and the bugger is still lurking in the bottom left corner.
Those were your upgrade choices, correct! We were going for a not so subtle hades mechanic ^^
Thanks for the kind words and we appreciate any further feedback if you have it!