Trifide

Insects from Trifid Nebula attacked Earth, and you should defend the native
planet from the invaders.

The game is a platform arcade shooter, where you should control your space
craft in top-down view on static levels. During 99 levels the enemies of
certain kinds are flying in certain different paths and shooting at you in one
direction. The Challenge occurs on each level number divisible by 5. During
the challenge indestructible probe with AI helps the programmed flying enemies
to defeat you. The Super Challenge occurs on 33, 66, and 99 levels, and it
means that enemies of various kinds will fly in certain different paths and
will shoot at you.

Killing each enemy will increase your score. When you kill all the enemies on
the level, you’ll be awarded with the bonus points. If you’ll progress in the
game without being killed, your space craft will be upgraded as visually as by
number of bullets you may shoot at once. 3 levels of your space craft is
available.

Finishing the 99th level you’ll be transferred to the 1st level again with all
your points, upgrades, and lives. When all your lives will be exhausted, you
may be enlisted in High Score table based on your scores.

Trifide