I wish I could play all these games, too bad I dont have older consoles

Crystalis for the NES or Zelda: Majora's Mask

I notice I see lots of Games I never heard of

PS1: FFIX
PS2: FFXII
PSP: don't have one yet
PS3: don't have one yet

N64: Mario Tennis 64
DS: Mario Kart DS
Wii: SMG amazes me, but SSBB or Mario Kart Wii will probably be my favorite

kingdom hearts 1 my favorite it was the first game i ever stay up days just to unlock everything

well thats what the vc is for

Chronotrigger

 I won't bother typing out lengthy justifications for my choice, I'll just encourage you all to play it.

Good list. Nice to see a lot of older games getting some love here, instead of assuming that because something is recent it must be better.

My favorite game, hands down, is Tetris. I've played it in some form continuously for the last 15 years. I've never gotten tired of the game, and I still play it pretty much every day. I'm current trying to break the official (Twin Galaxies) world record for the Gameboy version of Tetris. I've come within 7,000 points of doing so. It's going to happen soon. I can feel it. :)

Not saying it can't be thought of as a great game (or a favorite game), but I never understood the ff7 is the best game of all time deal. There's no real AI system, no real camera system, and the graphics have aged terribly.

My favorite game being secret of mana (snes).

Other than Secret of mana for me

i'm going to say

Pokemon
Gears of war
Half-life 2 (counter strike)
Super Mario world