Go Off! is the second and final studio album by heavy metal band Cacophony, released in 1988 through Shrapnel Records. About two years after the album's release, guitarist Jason Becker was diagnosed with ALS, which eventually led to his near-total paralysis. Also two years later, guitarist Marty Friedman joined the band Megadeth. The album was re-released on CD in 1991.

Martin Adam Friedman is an American guitarist, best known for his tenure as the lead guitarist of thrash metal band Megadeth from 1990 to 2000. He is also known for playing alongside Jason Becker in Cacophony from 1986 until 1989, as well as his 13 solo albums and tours. Friedman has resided in Tokyo since 2003, where he has appeared on over 700 Japanese television programs such as Rock Fujiyama, Hebimeta-san, Kōhaku Uta Gassen and Jukebox English. He has released albums with several record labels, including Avex Trax, Universal, EMI, Prosthetic, and Shrapnel Records.