S03E22 - Un mystérieux adversaire
Synopsis
The final fight begins with a struggle. Both opponents are evenly matched. The masked man launches Goku in the air and sends him crashing through the stage, but Goku attacks back. The masked man launches a Kamehameha Wave, which Goku avoids. Goku does his own Kamehameha Wave on the masked man. The masked man grabs Goku's tail, disabling him from fighting. The masked man is getting more familiar to Roshi all the time and he has a good idea who is under the mask. Roshi reveals that the man is none other than Goku's deceased grandfather Gohan.