Ghost Squad Cheats - Wii

Unlock Party Modes
Ninja Mode - Beat Arcade Mode once
Paradise Mode - Beat Ninja Mode once

Costume Levels
To unlock a new costume, simply reach the required level on single-player mode. The first two costumes are already unlocked.

Cowboy - Reach level 23
Desert Camo - Reach level 07
Future Warrior - Reach level 38
Gold Uniform - Reach level 99
Ninja - Reach level 50
Panda Suit - Reach level 60
Policeman - Reach level 10
Sky Camo - Reach level 18
Tough Guy - Reach level 15
Urban Camo - Reach level 30
Virtua Cop - Reach level 34
World War II Uniform - Reach level 20

Unlock Weapons
Reach the specified level in arcade mode to unlock the corresponding weapon:

XM-2119: Level 01
M4E: Level 02
P44M: Level 05
CAC82: Level 07
TM9V: Level 11
SAW24: Level 15
M45R: Level 19
SPR11: Level 23
PM6: Level 26
M94R: Level 30
AR4A: Level 32
Guardian II: Level 34
TR14: Level 38
P4512: Level 40
ABG1: Level 43
TK1B: Level 46
CPG7: Level 50
G50: Level 54
Guardian I: Level 60
M209: Level 61
SPR3: Level 69
MP10: Level 77
SR308: Level 85
SG112: Level 93
XMW21: Level 99