...what difficulty did you play on in KH1? cause even on normal, bosses like riku are hard as hell.

as for KH2, yes there is 3 different difficulty levels. let me go over them in detail

1. beginner: this is for big wusses who only care about the story
2. standard: this is for wusses who cant handle proud
3. proud: this is the only difficulty to have fun on, its proud or nothing

for you, PLAY PROUD!!!!!!!!