I'd argue that this is not a game music album. Looking over the tracklist over at emimusic.jp, the only songs that made it into any Bemani games that I know of are I'm Alive (DDR Solo Bass Mix), Dub-I-Dub (DDR 2nd Mix) and Captain Jack (DDR 3rd Mix). And technically, the version of Captain Jack that showed up in DDR 3rd Mix wasn't from this album; it was the Grandale Remix, from Dancemania Speed 2. And as far as I know, this album was released before the DDR series had started.
As Myrkul said, the main intent of the album is to be dance music, and some of the songs ended up being licensed. If most of the songs ended up being in a DDR game (like this album:
http://www.emimusic.jp/dancemania/da.../tocp64150.htm), I might think differently.