lol, holy crap how did that happen? I'm probably stating the obvious here but I'm guessing it was coded by someone well after Doom came out right? I mean I'm pretty sure this wasn't going to ACTUALLY have a retail release on the Spectrum... right? seriously... right? lol
looks awesome mate, I almost miss my spectrum, pretty sure it wasn't a 128k though, and it always used to die on me when I finished the first level of Ghost Busters 2!!!