From Kirbypedia

Name:	Iron
First Game:	Anime Only
Enemies Copied from:	Air Rider
Helper:	None
Anime Episode(s)	097

One of Kirby's Copy abilities. This one is unique to the anime, and has so far not appeared in any game.

Along with Water, Baton Twirling and Top, they all appeared in episode 097 of the show, and were all created by fans! There was a contest in Japan to submit your own Copy Ability ideas, and this was one of the lucky winners.

Iron Kirby has two forms. His first has him wearing a golden bodysuit with a cobra-shaped crown and a cobra staff, giving him a rather Egyptian style. He can use the staff to deflect attacks. His main attack is transforming into his second form- a giant golden Kirby statue which rolls to crush enemies. Similar to Stone, but not as mobile.

Kirby Copy Abilities:

Cupid - Animal - Backdrop - Ball - Balloon - Baton Twirling - Beam - Bomb - Bubble - Burning - Clean - Cook - Copy - Crash - Cutter - Fighter - Fire - Freeze - Galaxia - Ghost - Hammer - Hi-Jump - Ice - Iron - Jet - Laser - Light - Magic - Metal - Mike - Minimum - Missile - Mirror - Needle - Ninja - Paint - Parasol - Plasma - Sleep - Smash - Smash Bros. Abilities - Spark - Stone - Suplex - Sword - Throw - Top - Tornado - UFO - Water - Wheel - Wing - Yo-yo

Final Weapons:

Star Rod - Love-Love Stick - Rainbow Sword - Star Chariot - Master - Triple Star - Block