Amazon order history helped a lot for the last 5-6 years. Aside from that, I just wracked my brain. When I was a kid, every new game used to be special, so it wasn't impossible to remember, but I'm probably mistaken on at least a few.
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Yoblazer: http://i44.tinypic.com/5nw45i.jpg
Watch and you'll see... someday I'll be... part of your world!