I once saw a gameplay video of the song in question when I was a child, and I've been looking for it for years.
Just as the title says, the song is not based on Naoki Maeda's "MAX 300" (which was remixed by DM Ashura as "MAX Forever" to feature many DDR-related samples), but it featured many samples that are related to various BEMANI songs, mainly beatmania IIDX series and DanceDanceRevolution series.
I remember that the song is a some kind of heavy hardcore/hardstyle track with hard-sounding kick drums throughout, and had the sample from "AFRONOVA" (composed by RE-VENGE (Naoki Maeda) for DDR 3rdMIX) and "Ghostbusters" (remixed by DJ Yoshitaka for beatmania IIDX 14 GOLD, but the sample was probably edited to sounded like, or taken from Ray Parker Jr.'s original) at some point.