A pretty cool game, and I think that you succeeded in what you had set out to do. It feel pretty complete, allbeit a bit repetetive. I think the game could have benefitted from a bit of variety in what you have to do. And while I do like the voice acting and the different characters, I was hoping that they would somehow tell a story, like the first guy asks you to make his knife small, then the next guy tells you that he was robbed by someone with a tiny knife and needs you to make his crowbar bigger so that he can defend himself next time. Something like that.
All in all a pretty impressive and polished game. Well done!