Suggestion for Foxy's mechanic(very likely to be implemented into the game):

Suggestion for Wolfy's mechanic(scrapped):

Suggestion for Mechanical Lord's mechanic(scrapped):

Mechanic for the new enemy he suggested!(he called it Ghost Wolfy or something like that? Very likely to be implemented into the game)

Some of those were already scrapped because they would overload the gameplay too much. Anyways, let us know what you think about those in the comments below!