The career of Fucked Up has been, well, fucked up. The Canadian band blew up the formula for hardcore with the album Hidden World, played stunt gigs such as performing for 12 straight hours in NYC, then released The Chemistry of Common Life, a massive wall of noise complete with violins. Despite that, this two-CD collection of B-sides and alternate versions of tracks stretching back to 2002 sounds shockingly cohesive. “Neat Parts,” a blend of power pop and hardcore steam, is built around a beat stolen from the Undertones, while tracks such as the fist-pumping “Generation” and the sentimental “I Hate Summer” are the closest Fucked Up come to straight-up punk. Damn good.