The "Zombie Nation" game was released in December 1990. Takane Ohkubo did the design of the game while Kunihiro Hiramatsu did the programming of it.
On this poster you will see 8.3 seconds of it's game play, recorded 166 seconds after the machine was powered on.
The poster visualize the Random Access Memory while the game is running. This uncovers the inner working of the machine and at the same time it reveals its concealed but unique pattern to the world.