"HAHAHAHAHAHA..." Raditz threw back his head and roared with maniacal laughter.
At the moment the distant moon rose from the horizon.
His jaw began to stretch, his nostrils flared upward, and his eyes turned blood-red, filled with savagery and devoid of reason. The muscles all over his body swelled, dense black fur grew across his skin, and he rapidly shot upward in height.
Goku, Piccolo, Yamcha, Tien Shinhan, Chiaotzu, Puar, and Krillin quickly leaped back.
"I knew you were an evil bastard!" Tien Shinhan said with disgust on his face. He swiftly condensed a Ki blast and hurled it at Raditz as he leaped backward, while Raditz was still transforming and growing.
Tien Shinhan's Ki blast struck Raditz squarely in the chest, blasting the transforming Great Ape Raditz backward.
But Great Ape Raditz was thick-skinned and tough. Tien Shinhan's Ki blast could no longer harm him; it merely made the mindless Raditz feel pain, causing him to roar furiously.
"So he really is Goku's brother! Just like Goku, he can turn into a Great Ape as long as he has a tail!" Krillin cried out as he jumped back.
He had witnessed Goku transform into a Great Ape at the Twenty-First World Martial Arts Tournament—the tournament where He-El won the championship—along with Yamcha, Puar, Bulma, and He-El. He knew that when Goku had a tail, seeing a full moon would allow him to transform into a Great Ape and greatly increase his combat power, though he would lose his reason.
No one had ever told Goku about his transformation into a Great Ape.
Because everyone had guessed that, when Goku was young, he had seen the full moon one night, transformed into a Great Ape, and accidentally trampled his grandfather to death. To keep Goku from falling into grief and