She's ready for action...and to get back at Shredder.

Meet Alopex, a mutant arctic fox and ninja assassin who went from being unwaveringly loyal to Shredder to a true friend of the Turtles. Expertly swinging her sickle-like kama, she slices at her foes with ease. Hurling her kunai at close range, she deals a powerful blast of damage. And the best part-- she can briefly become invulnerable while targeting multiple enemies in rapid succession. Ninja powers that modify shuriken also affect her kunai, so try her out with the Ninja, Flame, and Water Powers for maximum impact.

Indebted to the Turtles, Alopex joins their fight to rescue Splinter. But things get complicated for her along the way as she faces off against her former sister-in-arms, Karai. Shredder previously held sway over Alopex, but when she escaped his grasp Karai stayed behind, leaving them on opposite sides when they used to be partners. In this story, she wrestles with self-doubt as her past catches up with her, and she needs to find the strength to overcome it.

Play with 5 new Artifacts that can modify your run in interesting ways:

- Polar Bear Netsuke - Every 10 seconds, Final Strike will throw out a line of flames. Cooldown is halved under half health.

- Buddy the Wraith - Summon an allied Utrom Astral Wraith. On room completion, it levels up. On death, it levels down. Tier increases on chapter completion.

- The Maltese Hamster - Your Tool charges slower, but deals extra damage.

- Channel Six Mini Camera - Your Special charges slower, but deals extra damage

- Hot Cocoa (with Marshmallows) - You have -1 dash. When you dash, gain a burst of movement speed.