An achievement list reveals new information about the unannounced Teenage Mutant Ninja Turtles game reportedly being created by Bayonetta developer Platinum Games.

Last month, reports indicated that Activision and Platinum Games were continuing their working relationship by creating a new Teenage Mutant Ninja Turtles game together. Reportedly entitled Teenage Mutant Ninja Turtles: Mutants in Manhattan, Activision has yet to actually confirm the game’s existence, but an achievement list for the unannounced game has now appeared online.

The achievement list for Teenage Mutant Ninja Turtles: Mutants in Manhattan reveals a lot about what the game will entail. It appears to be an action game of some sort, probably in the vein of Platinum’s Transformers: Devastation brawler, with varying difficulty levels, boss battles, and online multiplayer to boot.

The game will also have co-op play, which is not surprising considering the franchise it is based on. The achievement that reveals this is called “Showoff” and it tasks players with having Michelangelo do a special pose in co-op after defeating a boss. It’s unknown at this point if the co-op will be online only, or if it will allow for local multiplayer as well.

The achievement list also hints that the game will have stealth mechanics. Throughout the history of Teenage Mutant Ninja Turtles games, very few have really focused on the “ninja” aspect of the characters, so it will be interesting to see a stealth-focused TMNT game in action.

Of course, the stealth mechanics will probably go out the window during boss fights. And speaking of boss fights, the achievement list also reveals some of the iconic TMNT enemies that fans can look forward to facing in the new game. Expect appearances from Bebop, Rocksteady, Krang, and more throughout the course of Mutants in Manhattan.

Teenage Mutant Ninja Turtles Cartoon copy

With the previous rumblings about Platinum Games and Activision developing a new Teenage Mutant Ninja Turtles game together coupled with the leaked achievement list, it’s safe to say that the cat is out of the bag. At this point, it’s pointless for Activision to continue staying mum on the subject, and it would behoove them to move forward with the game’s official reveal.

Moreover, since the achievement list is already available, it stands to reason that the game is fairly far along in development. Most of the time, achievement and trophy lists don’t appear until a month or so before the game is set to launch, so we could be playing Teenage Mutant Ninja Turtles: Mutants in Manhattan very soon. Alternatively, Activision could opt to hold the game until the release of the next film this coming summer. Whatever the case may be, a Platinum Games-developed TMNT is an exciting prospect, especially after the great job they did with Transformers: Devastation, so hopefully we see some gameplay footage soon.

Teenage Mutant Ninja Turtles: Mutants in Manhattan has yet to be officially announced, so exact platforms are still a mystery, but expect it to release for the PS4 and Xbox One at the very least.

Source: Xbox Achievements (via Game Informer)