With the circumstances around it's development, I think Majora's Mask is the

Board 8

If we're talking Nintendo games, Super Metroid was made in under a year by a team of 23 people. Much more impressive IMO.

andylt posted...
If we're picking games made by one person, Cave Story has to get a shout in for pioneering the whole indie thing.

does Pong not count
All the stars in the sky are waiting for you.