Nuclear Missle, Ion Cannon or Air Strike!
at any time during the game unselect your troops then press a,b,c,left,right,down,up,left,down,right,up then press A for Nuke,B for the Ion Cannon, or C for the Air Strike

Money Code
at any time during the game unselect your troops then press right,left,a,b,c,z,y,x,right,left, your money will increase by $5,000 gach time you press the code