You play as the Angry Video Game Nerd, and you're on a mission: TO DESTROY ALL THOSE CRAPPY GAMES! Use your Zapper (a.k.a. "The gun") to destroy all the game cartridges and prevent them from coming into contact with your game systems at the bottom of the screen! Be warned: the game starts out slow, but things quickly transition after your first 100 points or so.
This game has the distinction of being featured in an ACTUAL AVGN EPISODE! Check out the video here!