Bandits

The objective of Galaga is to score as many points as possible by destroying insect-like enemies. The player controls a starfighter that can move left and right along the bottom of the playfield. Enemies swarm in groups in a formation near the top of the screen, and then begin flying down toward the player, firing bombs at the fighter. The game ends when the player's last fighter is lost, either by colliding with an enemy or one of its bullets, or by being captured. Galaga introduces a number of new features over its predecessor, Galaxian. Among these is the ability to fire more than one bullet at a time, a count of the player's "hit/miss ratio" at the end of the game, and a bonus "Challenging Stage" that occurs every few levels, in which a series of enemies fly onto and out of the screen in set patterns without firing at the player's ship or trying to crash into it. These stages award a large point bonus if the player manages to destroy every enemy. Another gameplay feature new to Galaga is the ability for enemies to capture the player's fighter. While the player is in control of just one fighter, a "boss Galaga" (which takes two shots to kill) periodically attempts to capture the fighter using a tractor beam. If successful, the fighter joins the enemy formation. If the player has more lives remaining, play resumes with a new fighter. The captured fighter flies down with the enemy that captured it, firing upon the player just like normal enemies, and can be shot and destroyed. The player can free the fighter by destroying the boss Galaga while in flight, causing the captured fighter to link up with the player's current fighter, doubling his or her firepower but also making a target twice as large. Galaga has an exploitable bug that can cause the attackers to stop firing bullets at the player, due to a coding error. In addition, similar to the famous "Split-Screen bug" in Pac-Man, a bug exists in Galaga in which the game "rolls over" from Level 255 to Level 0. Depending on the difficulty setting of the machine, this can cause the game to stall, requiring that the machine be reset or power-cycled in order to start a new game.

A Space Invaders/Galaxian clone written by John P. Shay and published by Solar Software for the Commodore 16 and 4 Plus. In Alien Attack you move a spacecraft left or right at the bottom of the screen, blasting aliens in formation above. You must avoid the bombs that they drop as well as avoid any aliens that swoop downwards or you lose one of three lives if you touch an alien or its bombs. Once you clear the screen, you face another wave of aliens.

In this shoot 'em up the player has to fight off four assault waves consisting of different enemy types until he reaches a huge UFO. After destroying the protective plates guarding the UFO's pilot in his cockpit the player can kill the pilot. The game starts anew with harder enemies.

There are many scrolling shooters but none of them is like "Sky Force". This stunning shoot ‘em up game combines the classic arcade elements with the new possibilities offered by current technology. The new installment in the series just came out in a spectacular style. "Sky Force 2014" was a huge success, acclaimed by gamers and critics. "Reloaded" gives players more of what they loved in the previous "Sky Force". Get ready for your device getting hot and your finger getting sore. Prepare yourself for exciting new missions, more powerful enemies and breathtaking boss battles! "Sky Force Reloaded" offers gorgeous 3D graphics, intense gameplay and a lot of new features. The options to boost up your planes are incredible. Yes, that’s right, PLANES! There’s a satisfying number of planes to choose from. Each with different strengths and weaknesses. Cater to your inner collector by hunting in-game buff cards and unlocking a number of achievements.

Space Strike is a commercial Space Invaders clone.

Quick Draw is a single screen two player shooter where each player stands on either side of the screen as cowboys, and have to try to shoot the other player dead. Both players can move up or down, and in between on the screen are cactus and a wagon that scrolls up the screen. The winner is the player who shoots the other player dead five times.

A shoot'em up based on Namco's arcade game Galaxian, where the player controls a spacecraft at the bottom of the screen moving left or right, destroying aliens above.

In this game the player has to shoot enemies in space through a series of rotating shields. Written by Eric Knopp and published by Sirius Software for the Apple II computers.

A shoot'em up based on Space Invaders, where the player controls a spacecraft at the bottom of the screen moving left or right, destroying a wave of aliens above descending slowly in formation.

A shoot'em up based on Namco's arcade game Galaxian, where the player controls a spacecraft at the bottom of the screen moving left or right, destroying aliens above.