This is the inevitable outcome of the Dragon Ball x Jimmy Neutron crossover, where in one timeline Cell fuses with the King Yolkian egg alien thing from that show, and they eventually form the perfect being PERFECT CHICKEN. He’s defeated when Carl does the fusion dance with Gohan.
Gomu Gomu no…Gummy Summons! It only costs one childhood to use him in battle, but it’s honestly worth it, he does bonus damage to hair creatures.
Dr. T-Rx is a John Hopkins graduate who is caught between the tragic worlds of upholding the hypocritic oath, and also being a T-Rex. His malpractice premiums are VERY high.