The Tower Mushroom Spore Glitch
In the DLC Endless mode of the Tower Redux (I call it redux because its missing the chandeliers) when some enemies step on mushroom spores they continue to act as they normally would. The difference is that you spores are consumed, the enemies attack them, and they dont fight back. They either stalk you or run to the rift. While one actually escaped through the rift (I couldnt do anything to stop it) the others just ran circles around the rift.
As a side note, spore controlled goblin sappers still disable traps when killed...worst team mates ever.