PlanetBuster Maximus
From Ratchet & Clank wiki
The PlanetBuster Maximus was a giant rocket built on Hoven meant to obliterate the planet that occupied Chairman Drek's new planet's ideal orbit: Veldin. While it was being carried away from the Bomb Factory by a massive starship, Ratchet and Clank were able to use a small turret to obliterate the vessel, sending the PlanetBuster falling into the icy waters below.
