Deadpool is a Marvel Comics character, who is known for being a mercenary. Due to Deadpool's talkative nature and tendencacy to break the fourth wall, he is nicknamed "The Merc with a Mouth". His real name is Wade Winston Wilson.
He is also the protagonist of a game of the same name, which was released in 2013. PewDiePie uploaded a Let's Play of the game, which last ten episodes.
Throughout the game, the character Death has a love interest with Deadpool.