Bass Buster

Bass Buster, known as the Forte Buster (フォルテバスター) in Japan, is Bass's main weapon. In Mega Man 7 and the arcade games, Mega Man: The Power Battle and Mega Man 2: The Power Fighters, the Bass Buster has the same capabilities as the Mega Buster. It can fire green bullets and charged shots. However, in Mega Man & Bass, the Bass Buster loses its charge ability in favor of a drastically increased rate of fire and the ability to fire in 1 of 7 directions. The Bass Buster retained these changes in Rockman and Forte: Mirai Kara no Chousensha and Mega Man 10. In Mega Man 10, the Bass Buster has the additional ability to disarm the shields of the Shield Attackers and Sniper Joes.

Upgrades
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Stolen Parts
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 * In Mega Man 2: The Power Fighters, after Bass saves Roll in the mission "Rescue Roll!", she will give the stolen new parts to him to enhance his charge shot.
 * Mega Man 2: The Power Fighters
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S. Buster
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 * align="center"|[[File:S.buster.png]] [[File:S.buster2.png]]
 * The Super Buster (スーパーバスター) is an upgrade for the Bass Buster that doubles its power, thereby making it quicker and easier to defeat enemies and bosses.
 * Mega Man & Bass, Rockman and Forte: Mirai Kara no Chousensha.
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H. Buster
Appearances: 
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 * align="center"|[[File:H.buster.png]] [[File:H.buster2.png]]
 * The Hyper Buster (ハイパーバスター) is an upgrade for the Bass Buster that makes it possible to shoot through walls.
 * Mega Man & Bass, Rockman and Forte: Mirai Kara no Chousensha.
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 * Note: "super" and "hyper" are the Latin and Greek spelling, respectively, of the same word.

Trivia

 * In games prior to Mega Man & Bass where the weapon is chargeable, a fully charged Bass Buster has the designs of a skull.