LONDON, Ont. - CAUTION: Contents are of a sexual nature and may offend some

The public health unit in London, Ont., is using comic book-themed superheroes and a villain named the evil "Sperminator" to teach teens about safe sex.

Visitors to their website can play the game "Adventures in Sex City," by choosing one of the characters: Wonder Vag, Willy the Kid, Power Pap or Captain Condom.

The goal is to then correctly answer 25 questions about sexual health and defeat the evil Sperminator, a character with penises for arms.

Shaya Dhinsa, manager of sexual health at the Middlesex-London Health Unit, says they worked directly with teens to develop a resource that would catch their attention and teach important information.

If players answer a question wrong the Sperminator shoots their character with sperm, but if the question is answered correctly their character uses a "condom shield" to shoot the sperm back at the Sperminator.

The game begins by saying: "In the dark of the night Sex City is in panic because of the terrible Sperminator, whose sole mission is to infect all citizens with various sexually transmitted infections."