[5][4] Datzman incorporated rock elements into the film's score in an effort to capture how Riley physically felt while playing hockey.

After recording different pitches of her mumbles, she gave it a "sort of cathedral treatment", with the theme evolving in different ways as Riley's mental state does in the story.

[8][9] In a review of the film for The Hollywood Reporter, David Rooney said that "The spirited score by Andrea Datzman makes everything pop even more.

"[10] Ross Bomaine of Collider called the score "tremendous", adding that it builds upon Giacchino's work in "subtle and brilliant ways.

[13] Several critics also opined that while the score had its strong suits, it paled in comparison to Giacchino's work in the original film.

[14][15][16] Matthew Stogdon of The Red Right Hand Movie Reviews described the score as safe in comparison to the original, and said "Michael Giacchino’s themes gave us a Peter And The Wolf level of expressive leitmotifs and assigned instruments for each emotion.

"[16] The film also features additional original pieces: "Bloofy's House Theme Song" written by Jennifer Rowekamp and performed by Ron Funches, "Baller Dash" by John Park, "TripleDent Gum Jingle" (also from the first film) performed by Datzman and Nick Pitera, and "Can't Slow Us Down" by Henry Beasley and Simon Oscroft.