Strongest Form 1

After successfully infiltrating and taking permanent control of Vegeta's body through Tuffleization, Baby possessed one of the most powerful Saiyan bodies in existence. However, simply inhabiting Vegeta was only the beginning. To fully weaponize his host against Goku and the other remaining free fighters, Baby needed to push Vegeta's body beyond its normal limits using his own unique Tuffle abilities.

Strongest Form 1, commonly called Super Baby Vegeta, was the result. By combining the energy Baby had gathered from possessing and draining numerous other fighters on Earth with the Saiyan potential inherent in Vegeta's body, Baby achieved a transformation that exceeded anything Vegeta had demonstrated on his own up to that point in GT. The visual changes were striking: Vegeta's hair turned white rather than the golden blonde of a standard Super Saiyan, and distinctive red facial markings appeared as a signature of Tuffle parasitic influence.

This form served as Baby's primary combat state during the middle portion of the Baby Saga, proving powerful enough to challenge Goku but ultimately insufficient against Goku's own escalating transformations. The realization that Strongest Form 1 was not enough to guarantee victory pushed Baby to seek even greater power, leading to the development of Strongest Form 2.