(http://i.imgur.com/dUB1ojj.jpg)
Got this one today took about 6+ years to get
Beating the old NES game "Dragon Spirit: The New Legend". Apparently, very few people on planet Earth have ever done it.
I felt pretty good after I beat all the campaigns in Empire Earth and it's Expansion legitimately.
I also shat my pants when I finally got 1000/1000 on Halo 3 after finally scoring a double kill with a Spartan Laser in Lone Wolves.