10 Video Game Heroes Who Accidentally Made Villains MORE EVIL
8. Solid Snake - Metal Gear Solid
Throughout Metal Gear Solid, Solid Snake is tasked with infiltrating Shadow Moses island and stopping terrorist Liquid Snake from making a nuclear strike with an experimental bipedal robot, Metal Gear REX.
Late in the game, you're tasked with deactivating REX with a PAL card, requiring a whole host of tiresome backtracking to temporarily change the card's shape in environments of different temperatures. But upon finally using the card, it's revealed that it actually activated REX.
As it turns out, until that moment, Liquid was unable to make a nuclear strike with REX due to not having the necessary access codes, and while masquerading as Solid's former advisor Master Miller, he manipulated Snake into the whole PAL card gambit in order to gain access to REX.
Basically, Snake inadvertently turned Liquid from a bothersome terrorist into someone who could freely hold the U.S. government - and effectively the entire world - to ransom with a walking nuke launcher.