User blog comment:Bullet Francisco/The Origin of Your Username/@comment-4220590-20130704231157

The first segment "Ultrasonic" originates from my fan character "Ultra Sonic" (not the archie one), a supposed super from that were on a higher level than the Hyper form. The second segment "9000" came from me trying to add a suffix that allowed me to keep the first segment, with the number 9000 just being an random, yet simple number I could remember.