Fun idea, could easily be a real LCD game, given a graphical overhaul, where each cart position is a hand drawn picture, the shelves are colorful backgrounds and the stuff represents something! Button presses are a nice touch.

The balancing needs work too, the difficulty curve rises too fast for me, which prevents the game in its current state to be enjoyable for longer, and which could have been easily prevented.

Solid work!

Buy the wrong stuff and you are dead – it's »buy or die«!

Overall a fun game – simple concept but still quite challenging.