The Ninja Turtles patrolled the rooftops of New York, jumping from building to building with the agility that characterized them. The night was quiet, only the sound of their footsteps breaking the silence of the sleeping city. Everything seemed to be going as usual until, suddenly, something moved in the shadows. An amorphous figure appeared before them, blocking their path. The creature seemed to be composed of a strange, shapeless mass, its body moving in grotesque and disconcerting shapes. The Turtles stopped short, horrified, as they drew their weapons with caution. Each one prepared for combat, although surprise and uneasiness were evident on their faces.

"What is that?" Mikey muttered, his voice shaking slightly.

"I don't know, but it doesn't seem friendly," Leonardo replied, his katanas ready.

The creature, which seemed to be some kind of mutant, emitted a voice that chilled their blood. Though her appearance was almost unrecognizable, her voice was unmistakably feminine, laden with resentment and spite. “You did this to me… You will pay for it,” she said, her tone filled with bitterness.

“Wait… that voice…” Donatello said, his expression changing to a mix of recognition and horror.

Raphael frowned his non-existent brow, remembering. “It can’t be… Is that her?”

The turtles exchanged glances, a dark memory returning to their minds. They recalled the night they faced the Krang. Amidst the chaos of battle, a mutagen container had accidentally fallen on a woman who was too close to the combat. They had tried to help her, but the mutagen had begun to take effect too quickly. Now, that woman, transformed into a terrifying mutant mass, stood before them, seeking revenge.

“We have to stop her, but… how?” Leonardo muttered, not taking his eyes off the creature.

The creature was advancing towards them with relentless force. Mikey was already thinking of a name for that strange creature made of dough, after all he had a knack for it.