Can you recommend some good multiplication games for my 10yo son?

My son hates doing flash cards with me but absolutely loves playing video games. I was wondering if anyone can recommend some multiplication games that he might enjoy. Googling isn't getting me much. I'm looking for things he can play on my hacked psp (sega,nes,snes,gba) or his DS. I would appreciate any suggestions.

How difficult do they need to be?
Freddi Fish pops in my head for some reason

I've never heard of that. I'm hoping to find something that maybe actually plays like a game but teaches multiplication facts 1-12. Anything above and beyond that would just be a bonus, but I really am hoping to find something to help him really memorize them.

I used to have a multiplication dos game when I was a kid.

Freddi Fish is really for starters.
I have played these games on my computer also.http://www.ds-scene.net/?s=viewtopic&nid=10573&hilite=math&type=phrase => a long shot

Thanks for the rec Jonez. I'll check it out.