[1][2] It consists of 13 tracks featuring artists including Foo Fighters, Tom Morello, Eminem, Royce da 5'9" (Bad Meets Evil), The Crystal Method, Yelawolf, 50 Cent and Limp Bizkit.
The duo had written two different songs; "Bring the Noise" served as the introduction to Noisy Boy and a piece for the climatic fight of Zeus and Atom, that worked well.
Filmtracks.com wrote "Real Steel is a score with uniquely packaged character, smart thematic loyalty, and one hell of a narrative conclusion, and any other composer attempting to match its quality in a possible sequel will face a potentially impossible challenge.
"[9] Daniel Schweiger of Assignment X wrote "While Real Steel starts off with raw, strumming simplicity, Elfman gradually brings in his more recognizable strings lines, heavenly choirs (with a particularly angelic voice provided by Poe) and fighting mad orchestra, with thumping, metal grunge leading to the big moment in the robot ring.
"[10] James Christopher Monger of AllMusic said "Danny Elfman's surprisingly upbeat and uplifting score trades in many of the composer’s signature moves (ghostly choirs and quirky, symphonic bombast) for a more lyrical approach.
Rooted in bluesy, country-folk guitar and John Williams-esque slabs of pastoral Americana, Elfman still gets in the occasional explosion, but there’s a comfy, rootsy vibe that permeates the score and echoes fellow composer Greg Edmonson's work on Joss Whedon's beloved outlaw sci-fi television series Firefly.