Before his foray into game development, Jasper Byrne made his name as a drum and bass producer, better known as Sonic. He also worked under the alias of Accidental Heroes along with his long-time collaborative partner, Silver (aka Dean Fletcher). As well as producing for some of the most prominent drum and bass record labels (including Virus Recordings, Metalheadz and Hospital Records), he also had his own label, Space Recordings.
His best-known work in video games is the 2D horror game Lone Survivor, which he developed almost entirely on his own.
He contributed music to the game Hotline Miami, four tracks of which are available on his record label's bandcamp page. His music will also appear in Hotline Miami 2: Wrong Number.