I agree with one of the other comments on here, this is quite addictive (I have played longer than I would like to admit), and of course with all of these games there is some polish and things that could be done. The only real things I would bring up is I am not sure how this fits the theme of surprise, I might have missed something though (unless it was the like upgrade system when you got happiness).
I also agree with another comment on here that I would probably have used the portal for something else, it said something about exploring (unless it is the lack of sleep making me imagine things) but then it is just another toy maker.
all in all it is pretty damn good.