Once you go down the elevator from the first room pick up a key in that hallway and before you just to the next building you can add a key and send the elevator back up. Do that you will need it later. From the remainder of the game when ever the monkeys come do not shoot them. If you only knife them you will revive a free perk. Keep doing this until you have all 6 perks. Once you have 6 perks and monkeys come agin still do not shoot. After the round get the perk bottle and go down the elevator from the starting room. Will it stop on phd Flopper? Just an idea of mine let me know what you guys think