^ Zelda II is awesome. It gets far too much hate. A must-have for any NES collection.
...well, until the final dungeon run, that is. Trying to survive all the way there, survive the final dungeon, then make it through 2 crazy-hard boss fights! I can usually make it to the final fight, but I've only actually beaten the game, without cheating, once. This is why the term "NES hard" exists.