Buggy Balls

The Special Buggy Balls (特製バギー玉) are powerful weapons used by Buggy.

Buggy Balls
These red bombs, engraved with Buggy's Jolly Roger, can create devastating explosions when fired from a cannon. Buggy claimed that these cannonballs, combined with his Devil Fruit powers, the Bara Bara no Mi, he and his crew can conquer the Grand Line. These balls were first used against Orange Town, two of them were enough to leave the town half-damaged. Buggy attempted a third shot directly at Monkey D. Luffy for insulting his big red nose, but Luffy deflected it with his Gomu Gomu no Fusen technique, destroying the pub it was fired from.

Muggy Balls
Later in Impel Down, Buggy showcases a modified version of the Buggy Ball, renamed the Special Muggy Ball (特製マギー玉), which he compacted into a size small enough to be concealed inside a person's body. Its appearance is a bullet-sized red sphere.

Despite its small size the Muggy Ball retains the full destructive powers of the Buggy Ball (in essence, similar to a hand grenade). This was first used against the Minotaurus, where Buggy kicked the Muggy Ball from the sleeve of his pants, and the resulting explosion injured the Demon Guard severely, but it was still conscious and standing. In the anime, rather than kicking it from the inside of his pants, Buggy instead launched it from his shoe after a small hole opened up on the bottom of the sole. Buggy also attempted to use a Muggy Ball against Mihawk, but he managed to deflect the Muggy Ball back towards Buggy using his sword.

Trivia

 * In Unlimited Cruise, Buggy's special attack involves him firing three Buggy Balls at his opponents.
 * In Episode 438, Buggy attempted to use one more Muggy Ball against the Wolf Unit, but they simply jumped over it.