- Skeets' Boo'tique in the East End Police Station
- Skeets' Boo'tique in the North Burnley Nightclub
- Skeets' Boo'tique in The Midnight Masquerade
Mister Boo previously dropped from The Vault, events, and challenges during the 2011 and 2012 Halloween events.
When summoned, Mister Boo uses a variety of Mental moves:
- Fires energy balls
- Panics enemies
- Lifts enemies into the air using Telekinesis
- Teleports to enemies
- Places Bastion upon himself after taking too much damage
- Mister Boo is only transparent at the eyes.
- Mister Boo occasionally shouts "Boo" when summoned in a very monotone voice. (until Game update 17)