Mashable has created a fun little video tribute to Sonic the Hedgehog by turning the San Diego Zoo's hedgehog, Elvis, into the iconic SEGA character.
I had a Sega CD when I was growing up and never owned a Nintendo, so Sonic was one of my favorite games as a kid. I still remember all of the words to the intro video to Sonic CD.
For something a little more bleak, check out Sonic the Taxidermied Hedgehog, which is exactly what it sounds like.