So, Crimson has recently been ragging on me that he is beating me in Guitar Hero III gamerscore because I had two achievements worth 45 gamerscore that were not necessarily achieved the right way, but I have recently gotten enough to still be beating you!

"Whammy Mania"-Use the Whammy Bar on every held note on Number of the Beast (Crimson already had this one)
+15
"Hendrix Reborn"-Played through Career with Lefty Flip on and off (I thought you had to do this on hard or expert.....at least I've made progress on 5 starring all the Hard songs)
+15

That seems to be enough, but WAIT! There's still more! Two epic achievements I thought I would never get...(both legit, I have become that amazing)

"Right Hand of God"-Complete Career Mode on the Expert difficulty (Raining Blood is still my most hated song of all time, and beating Lou seemed impossible until I saw a super fast way to beat him if you are REALLY lucky)
+20

Then, after completing the Expert career, I thought I was good enough for Through the Fire and Flames....sadly, I am not super-godly enough to beat the song (usually failing around the 70%-80% mark), BUT! I still got another achievement relating to this song....

"Star Mania"-Activate Star Power 3 times on Through the Fire and Flames on Expert (Not as hard as you think it is. They give you Star Power pretty excessively in this song. Apparently not enough to help me through the whole solo...)
+15

And I am only one song from getting "Shredder"(-Earn 5 stars on all songs on the Hard difficulty), the song is ironically "One" by Metallica, which would then be an extra +30!

How d'ya like me now, Crimson?