Buster Machine No. 3: "The Black Hole Bomb" Length: Unknown Weight: Unknown First Appearance: Episode 6 ["At the End of the Endless Stream"] Earth's final means of eradicating the alien forces in the galaxy. The Black Hole Bomb is actually the planet Jupiter compressed to a structure no larger than Earth's moon. Once detonated, it is capable of wiping out an entire star system.
Sizzler Length: 250 meters Weight: Unknown First Appearance: Episode 6 ["At the End of the Endless Stream"] Sizzler is the mass-produced version of Gunbuster. Although it does not possess the same capabilities as Gunbuster, it is just as versatile and effective in space combat. Effectively, Sizzlers replace the now-obsolete RX Machine Weapons.