Different face paint unlocked for in game use.
| Unlockable: | How to unlock: |
| FaceCamo | Defeat the Battle Beauty Laughing Octopus (the overall battle, no specifics involved). |
| Laughing Octopus | Defeat the Battle Beauty (human form) Laughing Octopus by non-lethal means. |
| Raging Raven | Defeat the Battle Beauty (human form) Raging Raven by non-lethal means. |
| Crying Wolf | Defeat the Battle Beauty (human form) Crying Wolf by non-lethal means. |
| Screaming Mantis | Defeat the Battle Beauty (human form) Screaming Mantis by non-lethal means. |
| Roy Campbell | Shock Colonel Campbell using the Metal Gear II during the intermission scene. |
| Otacon | Shock Dr. Emmerich using the Metal Gear II during the intermission scene. |
| Raiden Mask A | Shock Sunny using the Metal Gear II during the intermission scene. |
| Raiden Mask B | Shock Dr. Naomi Hunter using the Metal Gear II during the intermission scene. |
| Drebin | Purchase and keep more than 60 different weapons. |
| Big Boss's | Earn the Big Boss emblem on a single-player session |