Invulnerability:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'ARMOR' and then press 'Enter'.
Permanant Fairy:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'FAIRY' and then press 'Enter'.
Multiplayer Levels:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'MADMAG' and then press 'Enter'. All Multiplayer Levels will unlock with the option to turn them off and on.
Unlock All Story Mode Levels:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'ANTONIO' and then press 'Enter'. All Story mode Levels will unlock with the option to turn them off and on.
Unlock All Levels for Single-player Modern Mode:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'Prohias' and then press 'Enter'. All all levels for Single-player Modern Mode will unlock with the option to turn
them off and on.
Unlock All Spy Attachments:
At the 'Main' menu go to the 'Extras' screen and then to 'Cheats' and type in the
password 'Prohias' and then press 'Enter'. All Spy Attachments will unlock with the option to turn them off and on.
Unlock 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.
Unlock 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