I almost tempted to put NES Ice Hockey at number 1... I swear just get your best friend and fire up that game... Best two player game ever and I'm not even a hockey fan.
1. Ice Hockey
2. Super Mario Bros 3
3. Micro Machines
4. R.C. Pro Am
5. TMNT 2: The Arcade Game
6. Ikari Warriors
7. Balloon Fight
8. Tetris
9. Contra
10. A little drunk thinking this was a NES thread
Most Fun
1. Super Smash Bros. Melee
2. Mario Kart 8
3. Animal Crossing (NES games included)
4. Luigi's Mansion
5. Super Mario Bros. 3