IBM PC/PCjr version of Konami's Juno First arcade game.
Instruction sheet included
Description from MobyGames:
This game is a 2D shooter. You have to destroy the enemy's Magnet Power
Station with your gun. There are only a few moments before the atomic
turbine missile encounters the enemy. As a pilot of a space fighter you
have to shoot your way through waves of aliens. You can escape the
danger by using warps and special objects - to be collected en route.
The aliens will mutate into more dangerous forms the longer they live so
don't let the aliens survive.