Planning on getting Crackdown 2? Good! If you've got the Perfect Dark Xbox Live Arcade remake as well, you can expect a surprise - a playable character in the form of a Pacific City Agent.
Microsoft has contacted SPOnG to let us know of this rather cool Easter egg. When Perfect Dark XBLA discovers a Crackdown 2 save file on your console (or attached devices), it will unlock the character known as 'Agent 4' for use in the Combat Simulator (that's the multiplayer modes, obviously).
Now get to it, Agent. Etc.