Geek Mind - PC
Highretrogamelord89 let me know about this; it's an amusing, addicting little quiz game where you guess the title of video games by looking at a sample screenshot. There's quite a number of games to guess and some appear more than once (but through a different screenshot), not to mention you can get hints and skip pics with a score reduction. The music seems to stop playing after about seven minutes in and based on the achievements (the highest currently sits at only a few thousand points), I guess they didn't expect people to get too far.
This video was actually about sixteen minutes (my second try end score was 24775/Level 92, they pitched some easy ones early), but I lost on a Grand Theft Auto screenshot (I think I botched the spelling; the word recognition of Geek Mind isn't entirely perfect) and only go up to the first eleven minutes. There are over 300 levels. Just how much of a geek are you?
http://dom2d.squarespace.com/geek-mind/