The Ice Cream Creature was a character appearing in the TMHT Adventures comics by Fleetway Publications. It was created when Shredder poured a substance called Lifeogen into vats of ice cream at the Creamy Cones factory, effectively mutating the ice cream.
The Turtles learn of this when the four ice creams cones that Michaelangelo brings home come to life and merge into one very large Ice Cream Creature. After defeating the creature, they, along with April O'Neil, investigate and learn that all of the living ice cream comes from cones given out for free from Creamy Cones. They enter the factory thanks to a key given to them by Uncle Creamy, the owner of Creamy Cones and soon learn that Shredder is adulterating the ice cream and has taken Uncle Creamy's granddaughter hostage.
Separating, two of the Turtles find and free the granddaughter, while two others confront Shredder. He counters by activating the ice cream in a vat and bringing a huge Ice Cream Creature to life. The Turtles attempt to battle the creature, but it proves both too strong and too pliable, as Raphael learns when he tries to kick it and just goes straight through. The creature is finally defeated when Donatello turns up the heat and it melts. Shredder retreats and Uncle Creamy thanks the Turtles for saving them and the citizens of New York.