I'm not sure what qualifies as uncool since I regularly just play games I want to anyway without feeling repercussions against grating general society, I really still like playing Harry Potter and the Chamber of Secrets for the original Xbox. Or any system, for that matter. I think that's been one of my first favourite games for a LONG time and after selling it once and immediately regretting it, I quickly changed that and I like seeing it on my shelf.
Other mentions include Silent Hill: Shattered Memories, Cooking Mama, and Watchmen from the LIVE Arcade