Select the "Extras" option, then choose the "Cheat Codes" selection. Enter one of the following codes to activate the corresponding cheat function. If you entered the code correctly, a save icon will appear in the top right corner. All single player missions with three Janus emblems: Enter "fu11yst0ck3d" as a code to unlock all single player missions and have three Janus emblems in all missions. All MI6 Ops and 4 star rating for all mission: Enter "Quimbecile" as a code to unlock all MI6 Ops and get a 4 star rating for all missions. Classic Conflict and all multiplayer characters: Enter "pa1ntth3townr3d" as a code to unlock Classic Conflict and all multiplayer characters. Paintball mode in Multiplayer mode: Enter "wr1t1ng1s0nth3wa11" as a code to unlock Paintball mode in Multiplayer mode. Tag and Invisibility in Multiplayer mode: Enter "fu11ypr3load3ed" as a code to unlock Tag and Invisibility in Multiplayer mode. Black Moonraker laser rifle skin in Multiplayer mode: Enter "las3r3ras3r" as a code to unlock the Black Moonraker laser rifle skin in Multiplayer mode. --------/-----//-------/---- Now to get up to 100GS you can complete one of the missions and get the Janus emblem and all 3 achievements will pop, and complete any MI6 OPS with 4 starts and you'll get another 3 achievements .. I tested this myself .. Hope you enjoy!