I think the best way to run supaplex is to use
both the speedfix and DosBox. I run it with no problems that way.
And also something more, as
HPerk said, the speedfix is not only a patch, but instead is a full upgrade of the game with many new features, mainly the chance to play totaly new levels!!! even to make new with an editor. It's a nice add-on.
In
http://www.elmerproductions.com there are alos a lot of new levels and the solutions for ALL levels!!. This is my favorite web on this game. :nuts: