NES Classics: Super Mario Cheats for GBAOn: GBA
NES Classics are a series of Game Boy Advance games that were originally released on the Nintendo Entertainment System emulated on the Game Boy Advance.
How to save and continue:
When you die press L + R then select "Save High Score". After that you may turn it off or whatever. When you come back to it at the title screen press A and then start. You will start on the first level of the last world you were on.
There are 8 codes for this game.
Always Little Mario
Always Big Mario
Always Fire Mario
Enable Hard Mode