Different geographical regions had different colours for their album cover. The British version is black and white, the European import is black and red, and the American version is black and blue. The Japanese "Ultimate Version" is silver and white. The UK limited edition version is a double-sided DualDisc and has a glow-in-the-dark cover. The DVD element contains a making-of documentary and several music videos.
This album has been released with the Copy Control protection system in some regions. In the United States and Canada it uses the MediaMax CD-3 system.
The Canadian version of the album does not contain the songs "Orange", "Pinch Roller" and "Ovary Stripe", with the exception of digital releases.
David Jeffries of AllMusic praised the album for its take on different rock genres and compared them favourably to The Stone Roses and Tangerine Dream, saying that "Painting them as rock's saviors just makes the overly ambitious moments of the album look all that much bigger." Paul Moody of NME praised the album for its aggressive instrumentals and space rock sound resembling that of The Libertines. He signaled out "Test Transmission" as the standout track, calling it "an indication that once they've purged the violent tendencies, a future as space-rockers in the Spiritualized mould awaits." Betty Clarke of The Guardian praised the album's overall sound for resembling baggy music, saying that it "sums up Kasabian's affection for experimentation of every description."
Tom Edwards of Drowned in Sound criticized the album's songs for lacking any hooks and nuances to grab the listener's attention concluding with, "Sure this album may well sound awesome if you’ve just snorted a metre of charlie or recently breakfasted from a menu of 'shrooms and LSD, but for sober ears it’s enough to drive anyone to drugs." Barry Walters of Rolling Stone criticized the band for filling the album with half-baked ideas based on influences from Happy Mondays and Primal Scream, saying that "Kasabian make the mistake of trying to be revolutionary by quoting revolutionaries."
Tom Meighan – lead vocals (except "Test Transmission" and "U Boat")
Sergio Pizzorno – rhythm guitar, backing vocals, synths, lead vocals on "Test Transmission" and "U Boat", piano on "Ovary Stripe"
Christopher Karloff – lead guitar, synths, omnichord, bass on "Club Foot", "Reason Is Treason" and "Test Transmission", keyboards on "Orange" and "Pinch Roller", effects on "Pinch Roller", organ on "Ovary Stripe", drum machine on "Club Foot"
Chris Edwards – bass (all tracks except "Club Foot", "Reason Is Treason" and "Test Transmission")
Ian Matthews – drums (on "Processed Beats", "Butcher Blues", "Orange" and "Ovary Stripe")
Ryan Glover – drums (on "Reason Is Treason" and "Test Transmission")
Daniel Ralph Martin – drums (on "L.S.F. (Lost Souls Forever)" and "Cutt Off")