Ambush RNG is peak [World Tower Defense] 

If you see this you gotta go behind outside the restaurant and next to a big thing there's this small container and on top next to the edge there's a lockpick then grab the lockpick go back in the restaurant then go left into the dining room keep going in the you see a locked door open it with a lockpick go in the room keep going until you see a lever then get a lockpick again now go through the 10 trophy door and go down the stairs go the left wall of the subway behind the left elevator and keep jumping while moving on different parts of the left wall now if you get in through the wall there's a dark room with a door with the number 0 if you want to do doors WTD with more people then you need 4 or more people holding the lockpick out and being next to the door and one person has to open it