Following the same course as many other anime series, Code Geass Complete Best is a compilation of opening and closing themes to the hit show over a few seasons of changes. Interspersed between the various themes are a handful of dialogue breaks, candy to the hardcore fan. Musically, the album is somewhat unsurprising. The sound is constantly driving, seemingly acting as background to characters who are constantly running. The music begins with a bit of a grandiose piece from Flow over a repetitive beat. The neo-classical hybrid Ali Project pumps out their first of two appearances with a disjointed, intense, but entirely interesting piece in "Yuukyou Seishunka" soon after, setting up a more frenetic sound that's followed up on as the album progresses. Jin contributes a painfully immature piece with a grooving Red Hot Chili Peppers-style bassline, and the tone gets a bit more retro with contributions from Sunset Swish and Access. Orange Range contributes a pair of numbers, still holding to the high tempo, driving rhythm standards but also with a bit of a thrashing, cacophonous intent built in as per their usual form. The album ends much as it started, with a driving bit from Flow and an off-kilter but interesting piece from the Ali Project. The album is essentially just theme music, but it delivers a decent range and enlists some notables from the J-pop scene. Worth a listen, but only fans of the series may really give it time to develop.