So there was some sort of DOS release for this Speccy classic, released on 1997.
http://www.mobygames.com/game/dos/manic-miner
I dont know much of it. I dont even know if this was a commercial release. What I do know is that if its approved, I'll write a review of it since I've always wanted to write a Manic Miner/Jet Set Willy review for this site.
EDIT: Guess its freeware. Found the developers site
http://www.andynoble.co.uk/games.htm
Since its old though, I think it would be good to put this on both AB and AR. Heck, I'll review the Jet Set Willy remake while Im at it.