Max Power Kamehameha

MAX Power Kamehameha (MAXパワーかめはめ波) is Master Roshi's signature Original Kamehameha technique used in his Max Power form. It is his most powerful ki attack.

History
While the fundamentals of the technique are exactly the same as a regular Kamehameha, the overall power of this Kamehameha is even greater due to Master Roshi being in his MAX Power form.

Master Roshi first uses this attack to extinguish the roaring flames on Fire Mountain. The MAX Power Kamehameha succeeds in extinguishing the fire, but the blast is so powerful that it blows away the mountain and the Ox-King's castle. Master Roshi later uses it as Jackie Chun during his match against Goku at the 21st World Martial Arts Tournament. When Goku turns into a Great Ape by taking a glimpse at the full moon, Jackie Chun fires MAX Power Kamehameha to destroy the moon, reverting Goku back to his normal self.

In the movie Dragon Ball: The Path to Power, Roshi uses the technique to finish off General Blue's navy. Later, Goku uses it to blast a hole in Staff Officer Black's Battle Jacket.

It is officially named Kamehameha Saidai Shutsuryoku (かめはめ波最大出力; lit. "Turtle Destructive Wave at Maximum Output") in Japanese, referring to its debut in the manga and anime series.

Master Roshi later attempts to use the MAX Power Kamehameha against Broly in Broly - The Legendary Super Saiyan, although he ended up backing down at the last minute due to him being drunk.

In Dragon Ball Z: Resurrection ‘F’, Roshi uses the technique to defeat a group of Frieza's Soldiers.