Exerion Game was first released in 1983 by Electrocoin and in 1984 successively by Taito in America and Jaleco in Japan as an Arcade game.

Using the rapid fire gun too often means losing charges which can be re-energized only by on-target shooting with the dual space cannons.

The larger-than-life mutant space birds, genetically bred by the Exerions and on the attack with heat-seeking missiles, take eight hits to be destroyed... and take on a bright rainbow of changing colors when hit! And the EXERION adventure becomes more and more challenging as play continues!".

There were different cabinet configurations with different kind of joysticks. This game had a very good success thanks to its extreme action, and to its "flight simulator like" graphic.

It was converted for almost all Home computer systems.