I was so pissed off with the final boss, the moveset was weak and spammy, the dupstep tune was so unfitting, it made me so angry I actually played a more melodramatic theme tune over it because it was the only thing that fit the ending... Terrible end to the series, I was very disappointed.
There should be different types of game modes and maybe a map editor aand task customizer, like: Kill no one. Or, capture the CEO for ransom, stuff like that.
I like this game, because even the newest noob can kill, say, someone who has played for a few years, I don't like being completely outmatched, so, if you want something different, and still stand a chance. You'll feel right at home with Verdun.
As the game goes on, it seems to me like the boy fades more each time. But the girls world becomes lighter, more colourful and lovely, maybe the music gets a bit nicer. I don't know for sure.