Can you play Gameboy Advance Games on the Nintendo DS?

Yes. You can play ALL GBA And Gameboy colour on Nintendo DS.

yea u just cant use gameboy color games

yes you can play both GBA games and normal GB games it was a good game... you have good taste =D

yes you can, but not on the DSi (currently, you will be able to download gba, gbc, and gb games on the online store soon)

The GBA games were pretty thick compared to the DS ones, I don't imagine they'd fit...

It works! I have the DS & play my Advance games, just not my original GB games. Even though they can be played on my Advance SP

yes you can plug it in on the bottom when the Nintendo DS games are plugged in on top. when the Nintendo DS starts it will ask you if you want to play the Gameboy Advance game or the Nintendo DS game.

Yes it does work, this is exactly why I will never buy a DSi as they took away the best feature of the DS, the ability to play all of my old GBA games.

Yes but you can only play them on the normal DS and the DS Lite. DSi doesn't have the slot for GBA games.