First off, fantastic job on this one. The mechanics are solid, the side-kick (Or hero, if we were to listen to his opinions) is funny as hell, and the art looks great. However, the ending lies, as there was definitely hesitation about that kill for me. This was also a very interesting style of game, since there were actually more bosses than normal enemies, but the story and intricate boss battles were more than enough without filler levels to take up time.
Is it wrong that I'm in love with Zipp? It doesn't feel wrong, not at all.
and zipp, even without him i probably would have died, but when he stood in my way i killed him without hesitation..... "hey there sellie!" O.o!?!?!?!?