So, it seems that something in the code was off, causing the 'good ending' of the demo to be unplayable.
For some reason the default in front of the ending_points variable changed into a dollar sign, which ruined anything related to that variable.

This has now been fixed, so you can play it now, enjoy.

I'm not sure if there's still virus scan issues, but probably there are.
So, if you're uncertain whether the files are safe or not, scan them.