This is the name of most famous video game in history, which was really a very simple game. It came out in Japan in 1978 and there are still many people who play Space Invaders. 

Nowadays we are used to complex graphics and complicated plots in our video games, and for these reasons Space Invaders could seem simple and boring. But we are here to tell you, Space Invaders will hook you!

You have to move a cannon from left to right on the screen and shoot to kill the alien spacecraft. It's just that easy, all you have to do is hit the ships and avoid being hit yourself. 

In the first few years it was introduced, the game was very addictive. The Japanese government even had to introduce more coins into the country because so many people were using their coins to play this video game in fun zones.

There is also this strange video. Here you see two guys who manage to get into a building's electrical system to make a huge Space Invaders screen covering the side of the building.