Really good game, but I need to report a bug:
I had an Ego Maniac run. In that run, I gained a LOT of EXP and level ups, but when I was near the third Boss of the game, some of the level up doors and star packages started to bug, showing 3 options, but the 3rd option was a blank square that does nothing with a "New Text" below it, the description of that square was just a copy of the 2nd square's description. That was strange but I decided to ignore it minding the fact that this game is a prototype and that it was comprehensible for that to happen. But when I was 1 floor below the third Boss, I picked up a star package, when I picked that star package up, It showed me only 2 options that wasn't working, as being one of them that blank square that I mentioned earlier, and because those 2 options weren't doing anything, It basically softlocked me into the "SELECT YOUR PROMOTION!" screen, the game still had the properties of a "SELECT YOUR PROMOTION!" screen, so the background was slowed in time, but when I picked one of the options, it allowed me to control my character that was slowed in time for 1 frame, so, I tried to use an ability in this 1 frame window... That was a bad idea, because when I used the ability, the game didn't let me choose an option, so I was in a deeper softlocked state than before, because I couldn't even input anything anymore.
tl;dr: My game was softlocked because I leveled up too much.