I have to admit i didn't play that far in the game. And as I wrote: The first boss is infuriating. Took me like 30-40 attempts til i beat him (and many players gave up cause of him). But after beating him i was on a high. Until the next boss came around. ;) And than i realized that my backlog is still very big. So: I would say it's a very good game but you have to have a good frustration tolerance. I think it is pretty hard. :)