Raiden, also known as Jack, is the main protagonist of Metal Gear Solid 2 and Metal Gear Rising. In MGR, Raiden works as a security guard until Desperado attacks him on an escort mission. He is then saved by Doktor and spends the rest of the game taking vengeance upon Desperado.
Gameplay Tips
Raiden's Neutral Special slashes the opponent relentlessly if you hold it down. By pressing Special, Raiden rips out the enemy's spine (fake) and absorbs meter from it.
Raiden can also gain meter using Down Throw.
Raiden's Dash Attack can be jump cancelled.
Raiden's Down Air is huge. You can spike someone with it without going off-stage.
Although Raiden's Side Smash has long range, it has a blindspot directly in front of him.
Raiden's Up Special has no scaling, which makes it a decent air combo starter.
Trivia
Raiden's real name is Jack, and due to his violent tendencies, he was given the nickname "Jack the Ripper".