Iron Servant

Iron Servant is a robot created by Plankton to take down Spongebob and his friends. There is also another version created by Sandy that is good.

The Failed Wedding
This was Iron Servant's debut video where he attacks everyone at Spongebob and Sandy's wedding. He gets captured but escapes.

Jailbreak
Iron Servant appears as a guard in the Bikini Bottom Fourizon Jail.

He catches Mr. Krabs and his crew escaping and attacks them.

But he loses the battle and they escape.

Pat Pat Returns
Sandy summons Iron Servant to get Pat Pat back since he was escaping with the Hulk.

He flies Patrick over there and fights the Hulk and Pat Pat.

Eventually Pat Pat leaves with the Hulk and they fail.

Night of the Deaths
Iron Servant shows up to the Halloween party and sees who murdered Spongebob.

Sadly he was killed by water before he could tell them.

But he was revived towards the end of the episode.

The Anniversary
Iron Servant makes a meal for Plankton but he hates it and leaves.

The Science Fair
Iron Servant acts as the house's security system and stops Timmy.

He lets Spidey get away but then he calls Jr and his friends to talk to Timmy.

The New Santa
Something lands on the roof and Iron Servant checks it out.

Apparently it's an elf that wants Patrick to be the new Santa since the original died by diabetes.

Abilities
Missiles: Iron Servant is programmed to have missiles. He can make them explosive,radioactive or more.

Scanner: Iron Servant can scan any victim which reveals there age,name and source.

Rocket Boots: He can fly with rockets planted inside his feet.

Lasers: He can shoot a laser 500 feet in the air and can snipe enimies.

Cooking: Iron Servant can cook high class meals. They can even heal injuries.