I only finished it on easy mode, maybe one day I'll finish it on normal, but I don't know, it's a good game, but because it's not from my childhood like the Magical Quest trilogy, I find it a bit difficult.

Update: Ok, I finished the game on the other difficulties and about them, there isn't much to say, the only thing that changes is the fact that on difficulty it lets the bosses last up to 5 or 6 hits to die. Well meh to be honest.