Apparently the makers of Fester's Quest thought it was hard, too. They had a competition where if you beat the game, you send in a picture of your TV with the ending. I sent it in but didn't win anything at all. I thought that game was very easy, myself. Battletoads, though, was sooo hard. At least when you were single player and got to the rocket sled thingies. Don't think I ever made it past it. Been years since I tried. NInja Gaiden, part 1, was easy to me. UNTIL the end boss. I NEvER beat him. EVER. And it sent you all the way back to the beginning of the level. Screw that.
ps..sorry for typos. Im typing with Dorito fingers and trying not to make a mess

Mister E wrote:
Fester's Quest is one of the hardest for the NES. I can't get past a few screen lengths because you get three hits from an enemy and one life before the game is over.