Alien Storm

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 six missions to complete (eight 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, post boxes, trash cans, drums, and other items. Each mission has an objective such as rescuing people or destroying a UFO.

A homicidal alien race is invading Earth, and the only thing that stands between them and world domination are a special forces team known as the "Alien Busters", composed of Karen (absent in the Master System version, named "Karla" in some versions), Garth (named "Gordon" in some versions) and Scooter (the robot, named "Slammer" in Master System and PAL versions).

In Japan, Game Machine listed Alien Storm on their June 15, 1990 issue as being the most-successful table arcade unit of the month. MegaTech reviewed the Sega Genesis version and gave an overall score of 78%, they praised the game for being an outstanding conversion of the arcade version and praised the graphics and saying the gameplay is highly enjoyable. The only criticism they had was the game being too easy. Mega Play's four reviewers gave above average reviews and praising the game’s graphics, animation and felt the game was a near perfect port from the arcade version, despite being similar to Golden Axe. The criticism they had was with the gameplay being too easy and repetitive.

In 2023, Time Extension included the arcade version on their top 25 "Best Beat 'Em Ups of All Time" list.