Atari is celebrating its 35th birthday! Can you believe that it has been 35 years!? We certainly have come a long way since the good ol' days of Pong! (REMEMBER PONG!!!???)

The Atari 2600 is arguably one of the most popular gaming systems ever.  Here's a look back at its most popular titles when it dominated the videogame landscape in the early ‘80s...ahhh, memories :)

5. “Space Invaders” … 2 million sold.
4. “Missile Command” … 2.5 million.
3. “Asteroids” … 3.8 million.
2. “Pitfall” … 4 million.
1. “Pac-Man” … 7 million.