Spongebob Squarepants: Squidward's Suicide [COMPLETE]

5: I'm Ready!

Spongebob was standing on the tallest hill of Bikini Bottom, just staring at all the destruction.
Spongebob: "I'm ready."
Sandy: "Great. I called back up just in case."
A few minutes later, some ghost catchers arrived.
Spongebob: "I guess it's time."
Sandy: "Spongebob I want you to know that you may die doing this, so belive in yourself."
Spongebob: "I will, Sandy."
They started leaning in for a kiss, but Spongebob hit is head on Sandy's glass helmet.
Spongebob: "O-Oh. Whoops. Heh heh."
Spongebob: "Let's go, ghost catchers."
Spongebob hopped in the van with them and they headed for Squidward's house. They looked through the window and saw Squidward chanting something to himself. He then turned around and the blood red eyes were staring straight at them. They all flinched and were terrified.
Spongebob: "How are we gonna defeat him?"
Ghost Catcher 1: "I don't know. But we're gonna have to try our best in order to defeat him."
Squidward broke through the window.
Squidward: "How dare you interrupt me! You shall pay!"
Squidward sounded scarier and louder than ever. His tentacles expanded a lot and began to attack the team. They were trying their best dodging them all but 3 out of 7 ghost catchers were caught by Squidward.
G.C 4: "Agh let me goo!"
Later, they were turned into demons as well. They started walking torwards Spongebob and the fellow ghost catchers.
SpongeBob: *gulp* "This is it."
G.C 2: "No way. If he's gonna win, we need to atleast put up a fight.
Minutes later, the remaining ghost catchers were down, dead. Only Spongebob was left.
Squidward: "Well, Spongebob. I'm sorry it had to come to this. Goodbye forever!"
Squidward's attack was blocked.
Squidward: "What?"
??: "Don't you dare touch him."

Who could this be? Comment your suggestions.