You can see Zombie and Enderman in the hallways at the same time.

If Zombie is in a hallway, Creeper will leave when the room temperature reaches 45º instead of 40º. This should help with some unlucky situations.

If you die twice in Zombie's maintenance, you will get a tip reminding you about the left and right being reversed.

Pressing space bar while Zombie's suit is being taken off no longer repeats the sound effect.