I find myself playing portables more and more lately, so this is definitely a list I can get behind.
These are just the games that popped into my head first, in no particular order, and none of them are ports:
Mega Man Battle Network Series (GBA/DS)- This is probably my favorite portable game series ever. So absolutely awesome, it pretty much hits everything I want from a game.
Metal Gear Ac!d 2 (PSP)- Super rad card battling action. The first game in the series can hardly compare to the sequel.
Fire Pro Wrestling (GBA) - I played these games before ever playing the other versions. Great for a few minutes of fun.
Mario Golf (GBA) - The best (mario) golf game ever. Slick rpg elements make it the king.
Pokemon XXXXX (GBA/DS) - I don't know what pokemon game is my favorite, they are all pretty awesome. I have a fondness for the original games because of the pokemon list, but the gameplay in the later games in the series is much better.
Pokemon Trading Card Game (GBC) - I just played this for the first time in the last year or so. What a great, fun little game.
Card Fighters Clash (NGPC) - Until I played the MMBN series, this was my favorite portable game of all time. A classic.
SNK vs. Capcom Match of the Millennium (NGPC) - The best portable fighting game ever.
Monster Hunter 2 (PSP) - One of the best non-ccg portable gaming experiences I've had recently. So great and criminally overlooked.
Legend of Zelda the Minish Cap (GBA) - Short and sweet. Charming graphics, story, and some vaguely new Zelda elements.


