You can't add any games to any iPod without hacking into them. I'm not even sure if there are any games available to hack into the iPod Mini with. I don't think that there is, but even if there was, it would be a ling process that probably wouldn't be worth it, to me, but maybe it would be to you. ;-)
Yeah, it was, but with the click wheel, there is really no games that you'd be able to play that would be worth it.