Buy Alien Invaders from the Planet Plorth PC key

Alien Invaders from the Planet Plorth is a shooter in which you move sideways to dodge enemy bullets. You stay in the center of the screen as enemies approach from above and below; the game ends if an enemy reaches the center. Shoot all enemies to advance to the next level.

Enemies and bosses

Every 10th level features a more difficult boss that shoots orbs and sends a beam toward the center line. An orb or beam hit costs you a life.

Difficulty levels

You can choose from three difficulty levels, which determine how many bullets you can fire before your shots hit enemies or leave the screen:

• Easy: You can fire unlimited bullets.
• Normal: You can have two bullets on screen at a time.
• Hard: You can have one bullet on screen at a time.

Settings and high scores

The game saves your high score at each level and loads it the next time you play. You can switch between windowed and fullscreen modes and toggle music and sound on or off.