What I think of this... Awesome. Level Select alone would be amazing. I wish I could add this to special Version, cannot sign in into 2.1 Build anymore...
But the Clone and DRSG Levels... don´t know. Feel kind of unneccesary.
Played some other OHC Remakes that have them in as well and for me they kind of destroy the Pacing of the OHC Levels and don´t really fit here because they lack creative Ideas, they are mostly just walk in a straight Line and kind of boring.
Whatever... Still kind of neat I guess...