

Developed by X-Ample Architectures for Ocean Software.
Shooter / Strategy / Hack and slash/Beat 'em up / Action / Science fiction
A minigame collection based on the popular screensaver software

Shooter / Strategy / Arcade / Action / Science fiction
Tron is a coin-operated arcade video game manufactured and distributed by Bally Midway in 1982. It is based on the Walt Disney Productions motion picture Tron released in the same year. The game consists of four subgames inspired by the events of the science fiction film. It features some characters and equipment seen in the film, e.g. the Light Cycles, battle tanks, the Input/Output Tower.

Shooter / Hack and slash/Beat 'em up / Arcade / Action / Science fiction
Alien vs. Predator is a 1994 beat 'em up video game developed and released by Capcom for the CPS-2 arcade game system. It is based on the science fiction franchise of the same name. Introducing an original fighter to the game: Lt. Kurosawa, the players take control of up to three from the selection of four cyborgs and Predator characters in a battle against the Xenomorph hordes and rogue human soldiers.

Shooter / Real Time Strategy (RTS) / Strategy / Action / Science fiction
Set in the near-future of 2009, the game primarily revolves around controlling vehicles and turrets to fight alien invaders of Earth.

Shooter / Hack and slash/Beat 'em up / Arcade / Action / Science fiction
Alien Storm is a side-scrolling beat 'em up. The game resembles Golden Axe, with a similar artistic style, three playable characters (a man, a woman, and a novelty character) and pick-up or power-up special attacks. The player (one player only on the Master System version, up to two players on the Mega Drive version, three on the arcade version) selects from the three different characters to embark upon a quest to save the Earth from an alien invasion. All of the Busters are playable from the beginning of the game. There are 6 missions to complete (8 in the Mega Drive version) with several stages, and each mission has the player blasting aliens, from the streets to the mother ship, where the mother of all aliens can be found. This task becomes increasingly difficult with each new mission, and the aliens are capable of hiding inside objects such as plants, postboxes, trashcans, drums, and other items. Each mission has an objective such as rescuing people or destroying an UFO. When dealing with a few aliens, flying heads will appear, which can be shot to collect life or energy. Energy is used specifically to power the energy based attacks of the player's weapon (such as flames or electricity) and to use the much more powerful special weapons. In a similar format as other early Sega arcade games, each character has unlimited usage of various short-range attacks, i.e. punches, kicks. Along with these standard attacks, each character has their own individual weapon (Garth's weapon that shoots lightning is replaced with a flame weapon in the Master System version). Special attacks are also included, and vary depending on the character chosen at the start of the game. For instance, Garth summons an U.S. Air Force starship that drops bombs across the street (in the Master System version he has Karen's special, a ballistic missile strike). Scooter will teleport out of his present location and leave a series of bombs that will blow up on the appearance of aliens, after which he will re-appear (in the Mega Drive version he just explodes, leaving his head, which his new body returns to retrieve). Karen calls down a nuclear missile, which incinerates every foe on the screen. However, a large amount of energy is depleted by using each character's special attack, and cannot be used if the energy of the player's character is too low. There are few bosses in the game. The arcade original only features a single boss that has three distinct forms. The Mega Drive port has two of these forms as two separate bosses. At the end of each mission, the side-scrolling gameplay shifts to either a shooting gallery perspective where the player must take out the aliens that pop out of various locations, similar to the bonus stages of Shinobi and Shadow Dancer, both also by Sega, or a running section that is similar to the side scrolling mode but plays like a horizontal shooter instead with projectile weapons.

Shooter / Strategy / Arcade / Action / Science fiction
Front Line is a vertically scrolling action game. Your mission is to infiltrate enemy territory and destroy their fortress. To reach the fortress, you will have to make your way through varied and dangerous terrain. Jungles, deserts, brush, and rocks all slow your progress, plus each area has numerous enemy fighters and tanks trying to stop you. To help get past these obstacles, you are armed with a machine gun and grenades; at some points in the game you may even come across an abandoned tank which you can control to increase your odds of survival. When you reach the end of the level and successfully destroy the fortress, the game will repeat at a higher level of difficulty. Gameplay is for one or two players, and four different skill levels are available.

Shooter / Real Time Strategy (RTS) / Strategy / Action / Fantasy
In Gain Ground, players control one of a set of characters at a time. There are twenty characters, each with different weapons. To beat a level, players must reach the exit point with at least one character or destroy all enemies on the level before time runs out. Littered across the level are captive characters, which can be rescued by walking over, then escorting the controlled character to the exit point. If a player controlled character is killed, that character turns into a captive, except that they will disappear if the next active player controlled character dies, exits the level without them, or the player has no characters left in their party. The game is over when all controlled characters in the party are killed without any reaching the exit. However, there are three continues which allow a player to restart the level with their original three characters. There are 40 levels in the arcade version of the game. The Master System and the Genesis/Mega Drive have 50 levels in the game.

Shooter / Hack and slash/Beat 'em up / Arcade / Action / Science fiction
A side-scrolling action/shooter based on the 1987 Schwarzenegger movie Predator. It was published by Activision for many home computers and plays from an elevated side view.

Shooter / Racing / Strategy / Action / Science fiction
Raimais is a maze chase arcade game released in April 1988 in Japan. The object of the game is to drive your vehicle around a maze in order to clear the maze of dots while avoiding the enemy. The game consists of 32 mazes total plus boss fights.