Jun Senoue on Sonic Generations Original Soundtrack:
Radical Highway turned out to be a place, where it was the stage of Shadow in the original and where Sonic runs past in this game. Compositionally, wanting them to remix the original that aimed at high addiction with minimal composition, the ones I handed over to are the two groups, Cash Cash and Circuit Freq. They were produced separately with the plan of handling the remix while leaving the material like guitar use in the original, conforming to the concept of Act1 (classic) of this game for the former, and of handling the remix that adds their colors thickly for the latter. By the way, in addition to skillfully making club sound in the side projects that involve Julien-K’s Amir Derakh and Anthony “Fu” Valcic, who work together several times in Sonic series, and handling numerous remix works, Circuit Freq are active as DJs, too.