Zelda: Minish cap
OMG dude, minish cap is one of the best zelda titles ever. I recommend going to Gamefaqs and looking up how to get past the area that has you stuck cuz I feel bad that your missing out on this awesome experience. The difficulty is crazy and took me 5 games to beat it. (mind you I've pretty much mastered the zelda bird's eye view aspect of play). I'm sure it probably took others who hadn't spent countless hours playing the original and ALTTP a lot longer. Some of those bosses were insane. The main boss had 3 forms and took around 200 hits to kill total!