An update for Perfect Dark XBLA is now available which alongside some minor bug fixes adds a Southpaw control scheme to the game. There was quite a stir back when the game was released without this option, but MGS and 4JStudio's have seen the light and included the scheme due to demand from the fans.

Here's a list of the changes.

• Legacy controls
• Southpaw (left-handed) controls
• Swap Triggers control option
• Lock Sight control option
• Precision Aim sensitivity tuning
• Hardcore (No Radar, No Auto-Aim, No Highlights, Combat only) matchmaking playlist
• Gamma (brightness) option
• Secondary Fire Reset option in Combat Simulator
• Quick Menu select using either Left or Right stick
• Player Handicap reinstated in local multiplayer
• Client player progress recorded in Live Co-Op game
• Progress recorded for all primary players (main player on each console) in Live Challenges
• Counter-Op progress recorded for both players if Jo player successfully completes the level
• Achievement fixes including 'Tools of the Trade' (anyone who's earned but not received it will now do so), ‘Who Needs Enemies’ (awarded to Counter-Op player after a full mission's progress), ‘How's That For Starters?’ (awarded to Counter-Op player if Jo player completes first level)
• Increased duration of explosions to better match the N64 experience
• Laptop Gun sentry mode performance adjusted to match the N64 experience