ALSO, American, European, or games made in countries OUTSIDE of Japan count as well! Let's say the game company strikes a deal with an anime studio to make an anime based off their game. This is not unheard, because back in the days of Crash Bandicoot, Naughty Dog got a manga-ka who did kids manga (where Doraemon, Chocobo's Dungeon, and Super Mario manga were not uncommon) to do a Crash Bandicoot manga.
I would like to tip my hat towards:
Jak & Daxter
Ratchet & Clank
and Sly Cooper as three video games I'd like to see an anime based off of. They'd be great shows along the Shonen Jump line (One Piece, Naruto, Shaman King, etc.)
What suggestions do you have.
And because I know LOTS of people are going to say it:
Halo
Half-Life
So think harder!
![Razz :P](./images/smilies/icon_razz.gif)
~Otaku-Man
P.S. And no video games based off anime! That's just DUMB!