PLEASE NOTE: We take no responsibility for any changes you make to your hardware, software, drivers or O/S as a result of the cheats listed here. Only a few of the cheats listed have been tested and we cannot guarantee any of them will work. If you come across a bad/non-working cheat, please let us know and we will remove it.

Advanced Mode
First you have to beat the original campaign. Then you can buy the advanced campaign.
Clear Data:
Hold L + Left directional button + Select while turning the GBA on.
glitch and other things
New Play Modes: After beating all the field training missions, you unlock the War Room, Campaign, Design Maps, and Stats options kill opponents faster: will shootin hold a and the d-pad stop opponents building troops: place a troop of your own on your opponents building
Hard Mode
Hold select when choosing Campaign mode to play advanced mode.
Have War Room flash gold
Win all levels with a special rank and a score above 500 points.
In-Game Reset:
Press Start + Select + B + A while playing.
New C.O.s
After beating the Campaign mode, you can purchase additional CO's.
New Play Modes
After beating all the field training missions, you unlock the War Room, Campaign, Design Maps, and Stats options.