I hope the devs will see this. There is a bug with loading the levels at "NEW" and "NEW+" game. When starting a "NEW" game the level 1 map is mirrored and not like in the "maps booklet" of the physical version.
Thats fine I think, because the booklet seems to show the "NEW+" level 1.
But now to the bug: after pressing ingame F10 (return to title) and choosing "NEW+", the level is now like the "map booklet" (which is okay). After pressing again F10 and choosing "NEW" game, the loaded map always will be the map from "NEW+". The game does not load the normal map again. It will load always the "NEW+" map. (that happened with your actual game disks which were installed to HDD)
Another problem: While playing the "NEW" game and after using the end teleport at level 2-2 (4th level), you get teleported to a field surrounded by walls and no chance to get out of them (only by pressing Q or E, which will teleport you back to the 4th level). So its not possible to finish the game on "NEW" level mode. (here I used the WHDLoad version of the game)

