How to save a game on a nintendo ds?

My brother has a nintendo ds lite and he is playing the game 'mario and luigi' is their a way to save where he leaves off so he dosent have to start over every time he turns it back on?How to save a game on a nintendo ds?
in mario and luigi nintendo ds you can only save when you reach the castle in every town and finish it (the castle) then then a menu will appear choose save YOU CAN ONLY LOAD IT ONCE hope this helped sorry for the caps lock i wanted to warn you only...How to save a game on a nintendo ds?
Hi I suggest you buy a r4 cards with micro sd card to same games as I bought it before from www.ibuyvideogameDOTcom at favorable price.

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