Cobaltic Moment, from Kota Hoshino's (the composer of Armored Core) MySpace. Couldn't find a version of this on RU-vid that wasn't associated with an iPad ad, so I uploaded my own.
Unfortunately, no. Only Cobaltic Moment has been found, and any versions of it online are usually incomplete. I did find a forum asking the same thing, and it seems two other more popular songs have been “found” ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Cxxn-MlGt6A.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3szR1JreedM.html