I think a little bit of ambient music would've been great but the scary sounds and the FX were really good and matched the design which I thought was also created really well with the layout and the highlights when approaching the to-do's..it's a shame they only had 2 mechanics to work with so I feel it wasn't really much of a game. but none-the-less was well made and did give off that horror theme they were going for.
Also I thought it was a good idea that downstairs had to be complete before going upstairs which is the end of the game - and the end is quite funny with a potentially dead koala that all the running around was for.