I heard Silver Surfer was damn near impossible
basically my "list" is
Mega Man 2, Mega Man 3, Legend of Zelda 2, Final Fantasy, Rampage, Batman, Captain America and the Avengers which I went out and bought this week
And then I'll likely get Tetris, Dr. Mario, Paperboy, Double Dragon, RCA Racers, Bubble Bobble 1&2, Adventure Land, Little Nemo, Mike Tysons Punch Out, and Monopoly throughout the year.
And if you have any extra suggestions cool. Some are just way to expensive (Contra, Zombie Invasion).
Silver surfer is one of those games I have beaten that I like to call games made in hell, very difficult almost as difficult as the japanese made transformers game which I have never beat even on emulators. get these
Contra(if you find it cheap)
Milons secret castle
Teenage mutant ninja turtles
Mario bros 1 and 3
Ghosts and Goblins
Ninja Gaiden 1,2 and 3
Mike Tyson's Punch Out
Castlevania 1,2 and 3
Legend of Zelda link to the past
Super mario World
Super ghosts and ghouls
Megaman X1,2 and 3
Super Castlevania IV
Super mario kart
And just a note to you that the legend of zelda 2 game you bought is very hard and cryptic, a long and annoying game.