kirby's dreamland. i've never beaten on the extra mode though...

ducktales for Nintendo is the first game I beat.

Mortal Kombat II.

I think Street Fighters II: Champion Edition was the first one I beat.

Manic Miner!!! Loved that game, still do really.

"Super Mario Bros" for the NES. When you could rent an NES in your local gas station we almost always choosed SMB as the game of choice. My mother did beat it before me though :/

Maniac Mansion

I remember purchasing my first Super Nintendo game, Actraiser, and playing through the entire game in one night on my friend's SNES. I didn't even have the system yet, and I had beaten my first game for it.

You've beaten Actraiser? Lucky you. I can't get past Northwall.

Mines was Super Mario Bros. on the NES...