Can you get Pokemon FireRed on ds?

You can use the original Game Boy Advance games in the DS/ DS Lite Slot 2, however you will not be able to trade with other FireRed/LeafGreen players.

To do this you need a Game Boy Advance and the cables/ wireless attachments.

This is for FireRed/LeafGreen only, not the original Red/Blue which were for Game Boy/ Game Boy Colour. These older, large cartridges will not fit in the DS.