Main features:
- a status screen
- some cheating functions
- an ingame "choices helper" (walkthrough)
- renaming the MC and changing the girl relationships afterwards
- alternative music (comes from my Mod before original music from the dev was integrated now)
- a jukebox function to play all the tracks (Mod/Original) manually
- Sound effects
- Voices (human expressions/moanings, mostly extractet from the original Voiced Game Edition released some time ago)
most of these functions can be turned on/off while playing the game
Some more infos on the
Mod page