Retournement de situation

Goku and Baby begin to fight. In his new state, Baby is more powerful, but just like with Goku, lacks control of himself. He begins to destroy his own city and his people. Goku is able to fight back, and is confident that he can win. Baby begins to speak to Goku normally. He says that while Vegeta's body transformed, he, the parasite, remained unchanged. He was only destroying his people for fun. He then aims a Super Galic Gun right at the Earth, and Goku isn't quick enough to stop it. Though the Earth is not destroyed, the blast has caused it significant damage, and it won't be able to take another direct hit. Goku hits Baby with a Kamehameha wave, but it does little damage. Baby aims another beam right at the Earth, but Goku gets in the way and takes the full force of the blast. (Source: Wikipedia)