What Incredible Kids!! The Great Struggles of No. 18 (チビッコ恐るべし！！大苦戦の１８号, Chibikko Osorubeshi! Dai-Kusen no Jūhachi-Gō) is the one-hundred-eleventh episode of Dragon Ball Z Kai. Its Japanese air date was June 29, 2014.
Inside Babidi's spaceship, Dabura enters the meditation room and continues to raise his ki in preparation for battle. At the World Martial Arts Tournament grounds, an intense battle unfolds between Android 18 and "Mighty Mask". Inside the Mighty Mask costume, Goten and Trunks transform into Super Saiyans and unleash a formidable Big Tree Cannon attack. Having seen through their identity, Android 18 launches a Destructo Disk which cuts "Mighty Mask" torso in half. With it revealed that they were two people fighting as one, Goten and Trunks are disqualified.