Unlock Marble Mini-Game:
Get all 88 pearls and a marble mini-game on an mdisk will be available.

Unlock Disc Mini-Game
The last mDisk is located in a locked item cabinet on the Akuda Bar's first floor (by Francis' table).

To get the code, you will need to register on http://darkroom.ubi.com and enter your sixteen character "save code" - This is a code which is generated by the game each time you save it. Whether or not you actually receive the four digit game code will depend on whether or not your statistics are up to scratch!