After beating final boss first time I tried to beat the whole game as pacifist-summoner - 3 birds, fireball-bird, all items with extra hearts, no attacking enemies... But birds didn't want to attack boss, so I had to break my roleplay and slay her myself( Also, it would be nice and more interesting if the game had more bosses.
http://en.wikipedia.org/wiki/Local_shared_object#File_locations