*Luigi's Mansion: genre- not sure, what you do- suck up ghosts, why I like it- really nice graphics, great puzzles, just a very well rounded game (it has that nintendo magic).
*Eternal Darkness: genre- horror, what you do- fight monsters, why I like it- great story, interesting gameplay, best voice acting in any game I've ever played.
*Donkey Kong Jungle Beat: genre- arcade style action game, what you do- clear levels and fight bosses, why I like it- excellent old school arcade style platforming with a twist (you play with the included bongo controller)
*Legend of Zelda Four Swords: genre- action adventure (just like every other zelda game), what you do- clear dungeons and a few nondungeon "scenarios", why I like it- just plain fun, best multiplayer game ever (it is well worth the investment in gbas and link cables to play)
*Pacman Vs: genre- it's Pacman!, what you do- this game is just Pacman except that all the characters are controlled by human players, why I like it- adds tremendous strategy and competition to the old classic, both gamers and nongamers love it, you only need 1 gba and 1 link cable to play, it's free! (at least it used to be....now you'll probably have to buy Pacman World 2 to get the packedin Pacman Vs disc)
Runner ups: Pikmin 2 (get this instead of Pikmin 1), F-ZeroGX (a futuristic racer...fast as hell and hard as hell....a real adrenaline rush)
Major disappointments:
*Legend of Zelda Windwaker- Do not get this game. A shame to the Zelda series. You're better off with some generic action adventure zelda copycat (really).
*Metroid Prime- Backtracking galore. The first half of the game is good, but the second half is tedious when you need to go through all the same areas again (and fight the same bad guys again). Not to mention, the game is full of serious bugs (freezes, memory card problems, etc.).