Also known as: ぷんすかみゅうみゅう, MadMewMew, キスキスキューティみゅうみゅう, MewMewKissyCutie, ピンク(DELTARUNE), Pink(Deltarune)
Mew Mew is the protagonist of Mew Mew Kissy Cutie, an in-universe anime in Undertale and Deltarune.
She is prominently featured in the Nintendo Switch version trailer. In-game, a life-sized doll of her possessed by the Mad Dummy (Undertale) is fought as a version-exclusive secret boss.
In Deltarune, a similarly possessed doll is known as Pink and is fought as the secret boss of Chapter 5. Due to the nature of the Dark World, the doll itself becomes a Darkner, and during the battle, the two separate, with Ghost Pink (Deltarune) appearing as a gray counterpart.