No. To get good at a twitch game you need to develop your reflexes and learn about the game, this is a change on you, the player. Stats in an RPG are part of the gamestate. A genius player could pop Contra into his NES and play through it immediately but he couldn't pop in Final Fantasy and do OVER NINE-THOUSAAAAAND damage on one attack sinmply because his attack power depends on a number on his character. Conversely, a total idiot could take a save where every character is at level 999 and kill everything in sight with little trouble whereas an idiot playing Contra wouldn't stand a chance even if he is placed in the very last level, perhaps even at the final boss. That is what I consider difficulty, a challenge to the player himself, not a challenge to accumulated numbers in the game. The potential of a player is capped, some people just cannot get good enough to beat a hard twitch game but no matter how bad you are at an RPG, as long as you just grind to increase your numbers you can beat everything (save maybe for the secret bosses that won't be beaten just by randomly doing crap) without skill.