Now that you mention it, I became interested in it when I read an article in WIRED about some college kid who came up with a physics theory that there is no "now", but instead we are going to one event to another...at least that's what I think his theory was. There was a few other ones like...
or this: http://media.www.gamespy.com/articles/533/533968/imgs_1.html
or any of these: http://www.gamespy.com/articles/533/533968p2.html
gee...I bet this makes me look gay now.
Viewtiful Joe - I know it's been mentioned but just in case.
Okami - The game where your a wolf and you paint things. See to believe. http://media.ps2.ign.com/media/678/678618/imgs_1.html
Any Castlevania's.
Fantavision.
Gitaroo Man/Parappa The Rapper.
Harvest Moon.
Kingdom Hearts.