Rosemary (AI)

Late into the Big Shell Incident, an AI construct of Raiden's girlfriend Rosemary was used by the Patriots.

Biography
On late April 29, early April 30, 2009, after Rosemary ended up defying orders from the Patriots and told her boyfriend, Raiden, the truth about her being a Patriot agent who developed genuine feelings for him, the real Rosemary was removed from mission control and imprisoned. Her likeness was then replicated by GW, at the time in the late stages of an infection from a worm cluster created by the Patriots via then-recently murdered Emma Emmerich as a last resort if Arsenal Gear was hijacked, in an attempt to force Raiden to discontinue from going through Arsenal Gear, with the Colonel AI construct, modeled after the likeness of Colonel Roy Campbell, inferring that Solidus Snake and the Sons of Liberty may have captured her and placed her in the holds. Although Raiden briefly reacted and almost fell for the trick, Solid Snake assured him that it was a trick, and that since the Colonel was not real, and thus could not be holding Rose hostage, the Rose that Raiden witnessed was not actually her either. This revelation, alongside a comment made by Olga Gurlukovich earlier regarding whether Raiden would "handle the truth," caused him to become disturbed at the possibility that Rose herself may not even exist. The Rose AI was deleted shortly thereafter.

However, However, after Arsenal Gear crashed into Federal Hall, another AI of Rose and the Colonel contacted Raiden, announcing the true intentions of the S3 Plan: manipulating history and individuals and censoring the digital flow of information, as well as telling him that the S3 Plan was a resounding success thanks to Raiden. The Colonel ordered Raiden to kill Solidus Snake; if Raiden died, the Patriots would terminate Rose (and their child John, as Rosemary was pregnant during the mission) and Olga's daughter Sunny, also confirming to Raiden that Rose did indeed exist. Midway through the fight, the Rose AI alongside the Colonel contacted Raiden to goad him into finishing off Solidus. When Raiden tried to reason with them, the Colonel and Rose AIs implied that they ultimately viewed all of humanity as being tools to be discarded once their usefulness was at an end, as well as everything being a game to them.

Behind the scenes
The Rose AI is a minor character in Metal Gear Solid 2: Sons of Liberty. Similar to the Colonel occasionally adopting skull-like features, the Rose AI during the AI speech to Raiden also developed some inhuman features, although in her case it was blank eyes.