[+1] Elite Beat Agents
[+1] New Super Mario Bros.
[+1] Zelda: Phantom Hourglass
[+1] Another Code
[+1] Any Tony Hawk game (since they're basically the same game, IMHO... Downhill Jam not so much, but still not enough to count it separate)
[-1] Anything on the "Other Games List", except Front Mission, Operation Vietnam, Resident Evil: Deadly Silence and Tony Hawk Down Jam. I know this is a lot, but most of that stuff is rubbish, IMHO. If it's not rubbish it's only available in japanese language. Don't get me wrong, I love playing import stuff every now and then, I just think it doesn't belong to a "essential games" list.