Goku's Turn Dragon Ball: Doragon bôru : Season 1 Episode 72

The “Demons' Toilet” is lined with demon statues, and surrounded by a poisonous bog! The mysterious third contestant to appear is the mummy man, Mummy-kun! But in contrast to his appearance, Mummy-kun has ultra power and speed that surpasses Yamcha’s. Yamcha faces him with determination, but the difference in their power becomes clear. Still not understanding, Yamcha fights on until the end, but he is finally defeated! Then in place of Yamcha, who put up a good fight, Goku at last debuts!