New gamemode: FATAL_ERROR_#102001193 If you click it the game crashes
New item: 99if you use it the school will get red and A screeching noise( not the baldi one) and the game crashes after 1 minute (avaliable in Portal chaos mode only)
New ending: The unknown ending, it's the original game secret ending but the baldi's office is bigger and everything it's pitch black and when you approach shadow baldi he will say: "Oh... you're here... well i didn't expect this so... GET OUT WHILE YOU STILL CA44A4AN!111!!! HAHAHAAAAA!!!) and then he will chase you and you need to get out
and when you escape a black screen with red text saying: "You escaped... but this isn't the end..." and the game will crash
That's all!
Edit: also you have a flashlight in the unknown ending