The ship's design has changed little within each game. With it's gigantic wings, powerful weapons, and the mask on it's front, this particular design has probably been used the most, the one seen in it's early appearance in Kirby Super Star.
In 1996 when Kirby Super Star came out on the SNES, a game titled Revenge of Meta Knight was available once it had been unlocked. In Revenge of Meta Knight, Meta Knight's battleship and it's crewmembers have a significant part of the game. The vessel has a pair of large wings on each side along with smaller ones in the back. The front is designed like Meta Knight's mask.
Kirby Squeak Squad came out in 2005 for the Nintendo DS also featuring The Halberd in the game. Soon as Kirby gains passage to the Secret Sea, he chases after Meta Knight to again reclaim the stolen chest by traveling only then to reach The Halberd. The battleship's design is most likely from the anime with it's future-like appearance making it look different from Kirby Super Star.
In 2008 in Super Smash Bros Brawl for the Nintendo Wii, The Halberd is a stage that can be choosen as the fighting ground. Sometime later, fighters fight on it's deck in front of the ship's Combo Cannon and must watch out for the random attacks it fires at the competitors. In the game's one player mode, the Subspace Emissary, the battleship leads the threat to the world in service of the enemy. Meta Knight sets out to track down his stolen vessel. In this mode, it is also featured as a three part level. The Halberd's design in Super Smash Bros Brawl is referred from Kirby Super Star, yet it differs slightly compared to the older design.
In 2008, the remake of Kirby Super Star, Kirby Super Star Ultra for the Nintendo DS brings back many of the first's hits such as Revenge of Meta Knight. Once again, The Halberd takes to the skies to battle. The appearance is the same as seen in Super Smash Bros Brawl.
In 2010, Kirby's Epic Yarn for the Nintendo Wii makes us rethink how we should play with yarn. In this game everything as well as Kirby is made of yarn and fabric material. The Halberd is shown in the opening before Kirby drops into Patch Land. It's design is like so as in Brawl and Ultra. The Halberd is a unlockable bonus stage. To break through the vessel, Kirby rides the same starship in Ultra when fighting Kaboola.
The control room towers among the deck. It appears to be a rather small room with a row of windows, controls for other things and a wheel. This is where the crew is while giving orders and operating the entire ship. In Super Smash Bros Brawl, after retrieving The Halberd, Meta Knight takes the wheel and takes control.
The inner parts of the ship are filled of metal, slates, bars, wires, and illuminated with lights. Random sliding elevators and metallic doors are all over the halls. Some windows on some levels. Blocks and cannons placed as well.
Since The Halberd is a battleship and it's solitarily purpose is combat, no doubt it has a weapon or two. This vessel has many small machine guns and powerful cannons placed around the ship. The Halberd in Super Smash Bros Brawl seems to have more weapons than in Kirby Super Star.
The Combo Cannon, located on The Halberd's deck, is a weapon that specializes in several ways. First is the round cannon ontop of the bottom one. It can move up or down and shoot large cannonballs. The cannonballs fly slowly. The cannon underneath pops out and opens to shoot a beam. This is probably the ship's most effective long range weapon. Another part to the Combo Cannon is a hand/claw attached to a chain of metal. This hand/claw can grab anything it finds or drop bombs. On The Halberd stage in Super Smash Bros Brawl, these weapons conflict with the fighters. In Kirby's Epic Yarn, sometime in the Battleship Halberd stage, which must be unlocked, he encounters the Combo Cannon.
Heavy Lobster is a metal, robotic weapon that mostly moves slow. The metal armor makes it hard to damage with weaker attacks. The two claws can release smaller robotic objects, blobs, fire, or stomp the ground. If Kirby inhales one of the blobs, he can use the Paint ability to blind Heavy Lobster.
The Reactor has small lasers that drop down and ready in position to fire. The lasers can bounce off the walls and if it hits the Reactor, it causes damage on it. A pillar of fire can be blasted from the grates on the floor and from the small cannon in front of it. Kirby fights the Reactor in the unlockable Halberd stage in Kirby's Epic Yarn.