This game is a port of the cancelled CBS Electronics' version of Targ with some minor changes.
Besides the different enemy graphics and slightly different sound effects, the screen changes color with each level. Also, most of the bugs present in Targ are absent, and the Spectar (called the 'Warlord’s shuttle' here – all the names have been changed) does appear.
Save the humanoids from the impending aliens in the sequel to Defender. The task is still rescuing humanoids before Landers can turn them into Mutants, while avoiding and shooting other foes, however you must now carry humanoids to safety through the Stargate of the title. Entering this Stargate not only warps you to the nearest humanoid in jeopardy, but can also warp you ahead (while on the first 15 levels) if you enter it with 4 or more humanoids, and give you extra lives if you warp with 10 humanoids, so there is a trade-off between guaranteeing the safety of existing humanoids, and trying to advance your position There are more enemies on screen than ever before. The Inviso button makes you invisible to enemies, but also to yourself, so you will have to follow your bullets to work out where on the screen you are.
I believe this is Compile's first vertically scrolling shooting game, and contains many elements they'd later incorporate into the Zanac / Aleste series. The title screen credits "Programmers-3" but I have seen re-releases crediting Compile. Plus, the sprite for the enemy that splits into two halves is exactly the same as the one in Zanac!
A single-screen space shoot'em up in which the player has to destroy aliens while saving some scientists. It was originally released as "Space Fiends" by Magnificent 7 in a compilation called "Liberator / Space Fiends" in 1986 for Commodore 16. In 1987 Alternative Software named it "Fiends" and re-released it as a single game.
Gandalf the Socerer is a single screen shooter viewed from behind the castle walls looking out into the land, where you play the role of Gandalf and you must protect your castle from attack by Lizardmen trying to get your treasure. Gandalf starts on top of the castle walls and tries to destroy the Lizardmen who appear from the woods and move towards the castle by moving a crosshair and blasting them with fire. Any Lizardman destroyed leaves behind a gold coin.
Meteoric Shower is essentially a clone of Space Invaders, Galaxian and Galaga, but it introduces several new concepts: Your ship can move in all four directions, it flips upside down when moving down, and enemies can attack from both above and beneath your ship.
Fire Battle is a science fiction themed vertical scrolling shoot 'em up game in which you take control of a spacecraft.
You gather points by shooting various spacecraft, static guns and robots until your ship is destroyed. The ship has separate weapons for air and ground based enemies. Air based units can be destroyed with a twin bullet gun and ground based units with a slower bomb like weapon. You can play solo or with a friend in alternating turns.
As a warrior of the Dimension X you are descended on Jaraloba planet to defend it from Rigillians. The planet is divided in 25 sectors (5x5 matrix), and each of them is filled with enemy forces. Controlling a ground skimmer, you should eliminate enemies in each sector and proceed through one of eight gates in surrounding mountains to another sector.
Sitting in cockpit of your skimmer, you may examine the view in first-person perspective, accelerate, decelerate your skimmer, turn left or right, and shoot the enemy vehicles. During your mission, radar helps you to detect the enemies out of your view, but fuel is exhausting, and shields are decreasing with enemy shots.
Porkpolis - the city of flying pigs. Long ago, the flying pigs built large greenhouses to grow leafy greens year round. The pigs are well fed, but they create more waste than the land can handle. The greenhouses are put on gigantic floating platforms which float above a literal sea of... waste. The land below can not support life. But the pigs just keep eating and don't seem to care.
Urchin is a flying pig from this city. Urchin wants to be an explorer. So one day he up and flew into the distance. He saw many interesting lands, but suddenly strange creatures and flying dinnerware came at him. He quickly realized they were trying to eat him! Urchin is flying home - and you can help! Use your light phaser (or control pad) to shoot down foes while Urchin flies home. Protect your pork!
Space Mountain is an SG-1000 game developed and published by Tsukuda Original with the Othello Multivision in mind. It is a very primitive third-person space ship shooter, in which the player has to gun down enemy craft before infiltrating a base.
Fight off wave after wave of vicious alien attacks. Destroy the greedy landers and rescue the falling humanoids. Exterminate themutants with your smart bombs. Get out of trouble with your hyperspace facility. Avoid the treacherous minefields. Use your radar to detect the alien forces. Add an extra ship and smart bomb to your forces every 20,000 pts and attempt the deeps space challenge in this amazing arcade-style game.