the hackers soundtrack is fantastic and includes some of the best electronic music from the era. the version of halcyon and on is in my opinion almost as good as the original 11 minute 12" uk promo edit [0], which may not have fit on this soundtrack.
in 2020 varese sarabande released an expanded 2xCD of the hackers soundtrack [1]. the second disk includes full length versions of the instrumental electronic music composed for the film by simon boswell [2] but not included on the 1 disk soundtrack and is absolutley essential listening while rollerblading to the payphones at penn station.