Don't Underestimate a Super Saiyan! Vegeta and Goku's Full Throttle Power! (超サイヤ人をナメるな！ベジータと悟空の全開パワー！, Sūpā Saiya-jin o Nameru na! Bejīta to Gokū no Zenkai Pawā!) is the one-hundred-ninth episode of Dragon Ball Z Kai. Its Japanese air date was June 15, 2014. Its American air date is May 6, 2017.
Vegeta and Pui Pui's battle is overwhelmingly Vegeta's victory. Unable to simply watch, Babidi uses his magic to change the stage to the planet Zoon, a place favorable to Pui Pui. Planet Zoon is where Pui Pui was raised, and its gravity is ten times that of planet Earth. But the difference in gravity does not affect Vegeta, who easily defeats Pui Pui. The hole opens to a lower floor in Babidi's spaceship, and Goku and the others head to Stage 2. Babidi sends the monster Yakon to Stage 2. Yakon's opponent is Goku. Babidi changes Stage 2 to the pitch-dark world, the Dark Star, which is advantageous to Yakon. Goku becomes a Super Saiyan and illuminates his surroundings, but Yakon eats light, sucking up Goku's aura. Now knowing Yakon's ability, Goku becomes Super Saiyan once again and emits a powerful aura, forcing Yakon to suck up a huge amount of light and explode.