Supaplex is one of my favourite all-time DOS games. The idea of its creation was to have a version (clone) of Boulder Dash which can fit in a single 1.44Mb floppy disc.
The original DOS game shows many performance problems (specially frame jumps/skips) if executed under Windows (any version) or DOSBox, requiring the player to execute the game under "pure" DOS. There's a new release of the game on Steam/eShop/Mobile by inArcade, but this new version does not have the charm of the DOS original, because the inArcade version looks more like a browser/flash game, without counting this new version has many missing things and other problems compared with the DOS original.
The request here is to bring back the original DOS version of the game in all of its glory and charm, but modified to run perfectly on current systems (without any performance issue) under the "Good Old Game" label.