Momo is one of the two new characters added to Gunfire Reborn with the Realm of Frost and Inkwash DLC. Gunfire Reborn has added a whole host of new characters over the course of the game's lifespan, and most of them are incredibly creative (and incredibly overpowered) on release. Momo is no different from the rest in this respect, though it does feel like they're a bit more overpowered than most.