I remember using my Sega controller like a mace as a kid-- whipping the chord around and clubbing my copy of Mortal Kombat 2. I split the cartridge open. So, it is nice we don't have cartridges anymore.

But as far as challenges go: I like a decent challenge but don't like to lose. So developers need to tow the line. And there was an excellent point made in the vid -- more difficulty does NOT mean cheat like a *****. Make it genuine!