#19. Contra | Released: 1987
The classic arcade and NES game is responsible for popularizing the now-famous Konami Code — ↑ ↑ ↓ ↓ ← → ← → B A — as well as multiple camera angles and two player co-op. It also gave us a look at what the year 2633 will look like. Oddly enough, men dress in identical red and blue suits and carry large weaponry that has an endless supply of ammunition. Quick, someone build a time-traveling DeLorean!
