Combo Cannon
The combo cannon is a weapon on Meta Knight's battleship, the Halberd. It comes with a beam cannon, a cannon that shoots cannonballs, and a large mechanical arm. In the E3 Trailer, it seems to be replaced by Samus's Zero Laser.
In Super Smash Bros. Brawl
The combo cannon is one of the main hazards of the Halberd stage. In the Subspace Emissary, the combo cannon can be seen fighting against Fox's Arwing twice, until it was eventually destroyed. The arm also held the Great Fox as the Halberd crashed it into the Summit.
Trophy Description
The main gun of the battleship Halberd. As the name references, it has two guns--the top one shoots out slow-moving shells, and the bottom one fires a powerful laser. There's a mechanical arm at the base that is used to grab enemies and hold them to be blasted by the laser cannon. It has a wide attack range and once shot down Dyna Blade after she aided Kirby.
- Kirby Super Star, 1996