The Mutant Promos is the Kickstarter Exclusive box containing all of the Stretch Goals from the Marvel United: X-Men campaign. This will also come with Storm (Mohawk) and Old Man Logan, which were originally bundled with the Apocalypse and Uncanny Pledges, for a total of 59 Game Pieces. This box contains all the following characters:

- Arcade
- Avalanche
- Blink
- Blob
- Boom Boom
- Brood Queen
- Callisto
- Captain Britain
- Cloak
- Dagger
- Dark Phoenix
- Dazzler
- Deathbird
- Doop
- Emma Frost
- Fantomex
- Feral
- Firestar
- Guardian
- Gwenpool
- Havok
- Kitty Pryde
- Lady Deathstrike
- Legion
- Lockheed
- Longshot
- Magik
- Marrow
- Mastermind
- Mirage
- Mojo
- Multiple Man
- Namor
- Nightcrawler
- Northstar
- Old Man Logan
- Omega Red
- Onslaught
- Phoenix
- Pixie
- Polaris
- Puck
- Pyro
- Sasquatch
- Sauron
- Shadow King
- Silver Samurai
- Snowbird
- Spiral
- Storm (Mohawk)
- Strong Guy
- Sunfire
- Sunspot
- Toad
- Warlock
- Warpath
- Weapon X
- Wolfsbane
- X-23

Ages: 14+
Players: 1-4
Game Length: 40 minutes

This game cannot be played on its own or combined with Marvel United: X-Men for enhanced play.

Marvel United - X-Men : Kickstarter Exclusive Promo box