European Extreme makes me want to harm someone bodily. I could manage Extreme, but I don't think I ever beat it on European Extreme. Same goes for the said difficulty in Metal Gear Solid 2 Substance. NiGHTS Journey of Dreams is somewhat frustratingly difficult, but it isn't too extreme. I think it's only noteworthy because I got it yesterday. God of War was pretty freaking tough but I managed it. GTA 3 and Vice City are pretty tough at times. Half Life is pretty hard because it's so freaking long. I've never beat any Legend of Zelda games, except for TP, because they're really freaking tough, and Final Fantasy games are pretty hard for me because I'm not really an RPG man, and they're really really really long. Early Mega Man games are tough, but not impossible if you try again and again.