This is the award for the successful completion of the first level of the Xipe nebula.

You unlocked all the islands.

Performed a Wolverine to Wolverine Lunge

Defeated Remy LeBeau (Gambit)

Defeated the Sentinel Mark I

Found 1/2 of all Dog Tags in the game

Raised one Mutagen to level 3

Dismembered 100 enemies

Lunged to 250 enemies

Performed 25 Counter moves

Escapes from Weapon X

Lunged to 100 enemies