Update: Floor 47 was generated with no way to reach the exit (just two tiny rooms). I tried using the right-click cheat to access the only open part of the level I could find, and ended up in a huge room with no platforms and fell infinitely. That not only ended my run, it softlocked the game.
It's sad that a game this promising is so buggy. This is why I hate one-week game jams so much: people rush their coding to meet the deadline, it's full of bugs, and all too often they never go back and polish it up post-jam. Great ideas that could have made for great games, but they're just kind of tossed away because of a contest.