Konami Arcade Classics Cheats for Nintendo DS
Also on: PlayStation
Select 'Gradius' at the game selection screen and then at the 'Main' title screen press Up(2), Down(2), Left, Right, Left, Right, B, A. You will hear a confirmation sound if the code has been entered correctly. When you now pause the game your ship will have ALL power-ups except for speed. This can only be done once.