Ey man, this was a pretty fun demo.
Like right off the bat it has a pretty great artstyle. As Khryse said, the window size is very small, maybe you should have it defulted to a bigger size? (I did resize it to the biggest size though)
I got through it fairly quickly, it's a pretty straight line experience as it is. I'm curious, I spent some of the cash in the start on candy and soda, if I had spent too much money on that [Spoiler] would that be a soft lock since I woulnd't have enough cash for vodka? [Spoiler]
The objective music with the walkman is really nifty too.
A bit nitpicky maybe, but your cursor and your game screen are two different resolutions, it's kind of a hickup in the art, but maybe that's just me.
Overall, real potential here, I can see it turning out great!