Okay DS once you get past Mario's and Zelda and maybe Metroid. Suggestions are.
Castlevania games
Contra 4 (It's pretty good)
Puzzle Quest: Challenge of the Warlords.
FF 3
Dragon Quest Monsters: Joker
Brothers in Arms
Might want to check out Star Fox
Pokemon well if you like them if not leave it
Dragon Quest Heroes: Rocket Slime is worth a rental at least. If you got some kids who might play on it then buy it. (Note only if your a completist is it worth the rental because while it's a good game it is very easy you'll beat the actual game in about 10-12 hours or less)
Oh and Custom Robo Arena I think it's called.
There's I think an old James Bond Game if First Person Shooters is your thing you might want to check into that to.
Boycotting the following:
1. Yoshi: He ate my car and spit out a toaster.
2. Igglybuff: Totally false advertisement. You can have as many as you like they don't buff nothing.
3. the Terms Hardcore/Softcore... We're talking Video Games. Not Porn.
4. The term Casual as relates to Gamers: We make them sound like outsider's that happen to play games. If that were the case they'd own a PS3.
5. Donuts.... Beacause I drink Beer...... and the biggest fan of Donuts hates Beer.
6. Boycotts: Their so lame.