After Baby Vegeta transforms into a Super Saiyan, he has red lines across his face, crosshair-like lines on his eyes (a common trait among Machine Mutants) and silver-white hair and black eyes in place of the golden blond and green eyes typically seen of Super Saiyans. By combining the power of Vegeta with the energy he has absorbed from his former hosts, Baby's strength becomes even greater and he is able to easily dominate Goku in his Super Saiyan 3 form.
While in possession of Gohan's body, Baby briefly fights Piccolo. Defeating the Super Namek with a Super Kamehameha. Baby seems confident when he engages Vegeta in battle and was winning. Then a possessed Goten shows up, and he and Gohan overpower Vegeta allowing Baby to take control of Vegeta. though Baby leaves an egg planted within Gohan. The power of Baby Gohan is second only to the parasite's Baby Vegeta transformations. The only physical change in his eyes are outlined in black.
In , the automation of teens and older Sims around babies can be rather annoying. They will attempt to meet the baby's needs autonomously, but will not always be intelligent about it. For example, they will always autonomously feed a crying baby, even if it needs its diaper changed instead. So, while the autonomous "Hold Youngster" action may indicate that a baby needs some sort of attention, and crying definitely indicates that, the player may need to intervene and decide whether it needs to be fed, changed, or just held.