I believe the idea is very interesting, and I also understand what I should do in the first level... but man i cannot figure out how to put the blocks in the Logic section; also, when i turn around my camera the shop and that section disappear (?)
Maybe I'd suggest a different view, something that gives WASD the intended movement like top-down (dunno if it works for your game).
This was the first game I found that includes the programming loop concept and I wanted to try something like this, so if you wanna tell me what I'm doing wrong I'll come back and play again!