Enter the following in the Password Menu for these Extra Cards:
| Mika |
Mika Slayton |
| Xmeight |
XM8 |
| Karen |
Karen Houjou |
| Viper |
Viper |
| Jehuty |
Jehuty |
| umeda |
Asaki Yoshida (US Version) |
| Roppongi |
Shibuya Eri (US Version) |
| Kobe |
Kosaka Yuka (US Version) |
| Nomel |
Asaki Yoshida (JP Version) |
| Maeb |
Shibuya Eri (JP Version) |
| Sabrage |
Kosaka Yuka (JP Version) |
| Elyts |
Saitou Yuu (JP Version) |
Link Battle:
Beat Stage 6. Then check the Options in Intermission.
Play as Teliko:
Beat the Residential Zone mission.
Metal Gear Solid Snake Card:
Beat the game.
Raiden Card:
Beat the game twice. Difficulty is not a factor.