Spy vs. Spy

Cheat: Invulnerability:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "ARMOR" and press "Enter."

Cheat: Permanant Fairy:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "FAIRY" and press "Enter."

Unlockable: Multiplayer Levels:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "MADMAG" and press "Enter." All Multiplayer Levels will unlock with the option to turn them off and on.

Unlockable: All Story Mode Levels:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "ANTONIO" and press "Enter." All Story Mode Levels will unlock with the option to turn them off and on.

Unlockable: All Levels for Single-player Modern Mode:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "Prohias" and press "Enter." All all levels for Single-player Modern Mode will unlock with the option to turn them off and on.

Unlockable: All Spy Attachments:
From the main menu, go to the "Extras" screen. Then go to "Cheats" and there's a field to enter Passwords. Enter "DISGUISE" and press "Enter." All Spy Attachments will unlock with the option to turn them off and on.

Unlockable: Concept Art:
Complete each level in Single Player Modern Mode to unlock the Timed Levels. Each Timed Level you complete unlocks corresponding concept art for that level.

Unlockable: Costumes:
* Arisocrat: Complete the Mansion in Story Mode
* Clown: Complete the Kooky Carnival in Story Mode
* Flight Suit: Complete the Space Ship in Story Mode
* General: Complete the Volcano Lair in Story Mode
* Samurai: Complete the Space Ship in Story Mode
* Soldier: Complete Area 51 in Story Mode
* Spy-Bot: Complete the Robot Factory in Story Mode
* Worker: Complete the Oil Rig in Story Mode
* Zombie: Complete the Haunted House in Story Mode