jayderyu : I agree with the QTE, I loved Prince of Persia:The two thrones QTE's speed kill, perfectly justified, if you lose, you aren't punished too much (you just do the fight the brutal way, which is still a lot of fun)
— : "Easy games aren't good games." => wrong statement, Super princess peach is easy, and it is a good game, same goes for Monster World 4, because difficulty is a tool that has to be well used, a game starting out difficult is bad, since the player has to have time to adapt to the game to enjoy it, the difficulty should just come from a low point at the beginning to an higher point at the end of the game, or ideally to have the player choose how to do things, the easy way not rewarding but safe, or the hard way more difficult but rewarding.
Of course this is game specific and so we cannot have a simple rule for that