Let me divide the score into categories...
It's the first time I do this, by the way. First of all I'd like to point out that the idea is pure genius...
Gameplay: The game played good and it was very entertaining and fun, but it was way too easy the way I see it and I think there could be some items that should help you put all the things together like something that shrinks it or something. Also, you can fully upgrade every thing really fast, so the money becomes useless really quickly. 8/10
Art/animation: I had no particular problem with the artstyle and animation, then again there wasn't so much animation, but still no problem with it. 10/10
Story: Here I have to agree with the guy below me. The story doesn't develop, although in the end it would seem not to matter to him that he was an assistant, but it's not clear what actually happens in the end, or simply nothing happens. 4/10
Dialogues: I didn't like the voice acting very much, first of all, and everything they say is so predictable. It was rather childish. Still no major flaws or anything so it's OK. 8/10
Overall: The idea is really unique and original, but the game itself didn't turn out to be super good, but this is still a good game, got me through to the end.