Dragon Ball Super Episode 90
See The Wall That Must Be Passed! Goku Vs Gohan
As Gohan finishes training with Piccolo, they go to meet with Goku, Master Roshi, and Tien. At Gohan’s request, Goku and Tien have a fight against Gohan and Piccolo to practice for the tournament. Although Tien views this as a practice match and wants to avoid injuring anyone, Gohan and Goku take the fight seriously. As Gohan fights both his father and Tien, Piccolo spends the time charging a strong technique, which ultimatley destroys the mountain fighting stage when it is launched. Tien calls the match off on the grounds that the fighting stage is now destroyed. Although Goku agrees, Gohan requests to have a one-on-one fight against his father. Goku accepts, and Gohan transforms into his Mystic Form while Goku goes Super Saiyan 2. Although Goku has the upper hand for much of the fight, Gohan turns the tables and begins to overpower Goku. Gohan begs Goku to use his full power. Goku responds by becoming a Super Saiyan Blue and using his Kaio-Ken technique, then defeats Gohan with a single blow. Impressed with his son’s improvement, Goku assigns Gohan as the leader of their Universe 7 team. Meanwhile, Rumsshi (ラムーシ Ramūshi) recruits a powerful fighter named Murichim (ムリチム Murichimu) and his companions to represent Universe 10 in the tournament.