This is why I feel about Chester from the Codename Kids Next Door, He is really evil mad scientist, I never liked him so much, And that's why Tom Kenny voiced him, Yeah, I like Tom Kenny so much he's pretty funny.

But for those episodes list while appeared like Win or Lose.
He first appeared in Operation: C.A.M.P., in which he is the councilor of "Camp Lemmeouttaheah", where kids were brainwashed into making wallets and lanyards for Chester to sell. With the help from their new teammate Bradley and his parents, the KND defeated Chester and set the campers free. -Chester Lost-

In Operation: F.A.S.T.-F.O.O.D., Chester enacts what is undoubtedly his most despicable plan ever (and possibly the most gruesome operation of any villain in the entire series): opening a fast food restaurant called Burger Frenzy, where kids visiting the restaurant are captured and used as the meat on burgers which are then sold to sharks. This horrific plan was stopped by Kuki during her birthday "mission" of picking up lunch. -Chester Lost-

In Operation: U.T.O.P.I.A.., Chester creates the "Happy Headband", which traps the victim in a virtual reality in which they experience a personal paradise. However, the device can be adjusted to turn the dream "sour". He intended to sell it to parents as a product designed to keep children under control. The Happy Headband was tested on Nigel Uno, who eventually escapes using the jet boots he is wearing in real life. He then puts the Happy Headband on Chester. In Chester's fantasy, he has defeated Numbuh 1 and finds himself in a room surrounded by a cheering crowd of his fellow villains. Mr. Boss then awards Chester a check for "a buhmillion dollars" for his victory. At the end of the episode Wallabee turned the dial to Sour at which point Chester realized that he was wearing his own headband. -Chester Lost-

In Operation: S.A.F.A.R.I., Chester disguises himself as "Dr. Phineas Sharp", a doctor who gives vaccination shots for "Moosebumps". he used Nurse Jumbo, a needle-hating elephant who quittted working for Chester after receiving repeated vacinations by mistake due to Chester's poor aim and Nigel Uno's quick foot work. However, the shots he gives actually cause Moosebumps, which literally turns the victim into a moose. Chester intends to saw off the antlers of his victims and use them to make "Chester's Marvelous Moosicles". Though at the end of the episode it's revealed the entire turn of events was the paranoid ramblings of Nigel Uno who was trying, and failing, to explain to his mother why he shouldn't get his moosebumps shot. In the final shot of the episode, it's revealed that Chester is the secretary for the real doctor. -Chester Wins-

But first of all, I made a Chester turned into a burger, And I gave a shark to eat Chester from Kids Next Door for defeating Numbuh 1 not appearing another episode, Good bye Chester, Shark is going to eat Chester.

And you know what, I really don't like Villains winning and heroes losing, But I like Heroes winning and Villains losing.

Arthur (Me) belongs to Me
Chester (KND) belongs to Cartoon Network