LoZ of course. I love 'em all they have some epic moments and battles in 'em. The storylines are awesome and the game play is always great fun. Plus they have plenty of minigames, all kinds of collections (like heart pieces) to get and are filled with great dungeons and fun puzzles. I love fighting the bosses too, figuring out how to use the equipment you have to bring them down.
One of the most epic games I have ever played was X-COM: UFO Defense. The tactical battles were amazing because they always tell a story. Once, one of my new recruits got brainwashed by an alien and shot the squad leader in the back, killing him. Another time my team was almost wiped out because the aliens were planting eggs in civilians, turning them into aliens as well. And I'll always remember raiding a landed UFO. I would always have the point-man strap a high explosive to himself and set the timer for a few minutes so that I clear the UFO whether the team lives or dies. Fun times.
The secret of moneky island so funny to play which I did for most of my child hood shame I can't find a copy that works on a modern PC aahhh 16 floppy sisks those were the days.
Do you count any other game on the first nintendo console a classic?
Anyway, Some of the great classics I remember spending hours on were.. Primal rage Killer instinct gold the zelda series Metroid Megaman F-zero super mario world mario kart sonic mortal kombat Castlevania gauntlet