The album continued Buck 65's tradition of combining several different musical styles, and featured many different guest collaborators.

Ross Langager of PopMatters gave it a seven out of 10 rating and called it "uneven but dynamic", complimenting Buck 65's "mix of subcultural influences" as "a dizzying, post-modern, multicultural stew".

[4] In consumer guide for MSN Music, critic Robert Christgau gave 20 Odd Years an A− rating,[3] noting "Superstars Don't Love" and "Zombie Delight" as highlights, and commented that "Beholden to nobody's scene or purist myths, the Halifax-spawned, Toronto-based, Paris-savvy cult rapper makes beats his way—drum tracks of course, this is hip-hop like it or not, but with whatever on top, which here comes down to mostly female collaborators whose sonics subsume their considerable verbal input".

[8] The album was preceded by a series of four EPs, released digitally and on 7" vinyl: 20 Odd Years, Vol.

The latter EP was withdrawn from availability, presumably due to copyright issues involving the unauthorized sampling of the Bronski Beat single, "Smalltown Boy.