A fast-moving invaders-type game where the aliens in space
take the form of birds. At the start the birds appear in formation at
the top of the screen. Your fun is stationed at the bottom and is
moved and fired by either keyboard or joystick. There are
four skill levels.
For each bird destroyed, points are scored, these being lowest
while the birds stay in formation, but as the game progresses they
break ranks and attack begins in earnest.
There are three categories of bird: the Swoopers, these circle
down the screen dropping bombs as they come; the Death Bombs,
to be destroyed before they reach the bottom of the screen or a
life will be lost; and the Kamakazee Birds - the most elusive yet
these will score the most points.
As each screen is cleared another formation appears and for every
third screen completed, an extra life gained. The game ends when no
lives are left and a table of high scores displayed.
Additional features of the program include commands to turn off the
sound, and pause to stop play when finger fatigue sets in.