I've found a game-breaking glitch. After the boss fight on floor 50, you can't progress because the elf chick dies if she crosses the bridge, and it plays the fall to your death sound.
That's what I'm talking about. The princess could cross the bridge, not the elf, and while trying to recreate the glitch, I found another one. On my second attempt, on starting the boss fight, the elf teleported onto the black tile where the bridge should be, and you can move up onto the side of the bridge, but move anywhere else and you die. I think it has something to do with the teleportation spell in the last level, because I put the teleporting orbs on the tile above the starting location, and the tile where the bridge would have been. Even stranger is that when I opened the save file where I found the first glitch, the teleportation glitch was still active somehow and I could reach the other side. Hopefully that's more than enough details about what's happening.
The problem is that I still can’t find the bug. No matter how many times I test the boss fight, everything works fine for me. I’ve tried dying by fire, by falling, dying while the teleporters are active, dying before and after using them, and even dying by falling after the boss is already defeated. Everything works properly—the game doesn’t break, and I can cross the bridge without any issues. I’ll keep investigating, but I honestly don’t know what might have gone wrong in your playthrough.
At least I’m glad you were able to finish the game, and I hope that despite the bugs you experienced, you still enjoyed it. As for this last bug you reported, I’ve already fixed it. And don’t worry—the game had already ended anyway; the next thing that would have happened is that it would return you to the main menu.