Gamma 2 is Gamma's second album, released in 1980. On this album Ronnie Montrose keeps his streak of not having the same personnel on two albums in a row, changing the line-up once again. Davey Pattison (vocals), Montrose (guitar), and Jim Alcivar (synthesizer) remain from Gamma 1. Glenn Letsch replaces Alan Fitzgerald on bass and old Montrose bandmate Denny Carmassi replaces Skip Gillette on drums.
- "Mean Streak" (Jim Alcivar, Ronnie Montrose, Davey Pattison) - 4:50
- "Four Horsemen" (Montrose, Pattison) - 4:48
- "Dirty City" (Montrose, Pattison) - 4:04
- "Voyager" (Montrose, Pattison) - 5:23
- "Something in the Air" (John "Speedy" Keen) - 3:17
- "Cat on a Leash" (Montrose, Jerry Stahl) - 4:03
- "Skin and Bone" (Montrose, Stahl) - 4:48
- "Mayday" (Alcivar, Montrose) - 5:37
- Produced by Gary Lyons and Ronnie Montrose
- Engineered by Gary Lyons
- The cover of Gamma 2 bears an some resemblance to the cover of Shark Sandwich in the 1984 film, This Is Spinal Tap.