A first-person, samurai-themed action game by Konami. It uses a katana-shaped motion controller, similar to Namco's later arcade release Mazan: Flash of the Blade.
Set in a medieval Japan, Magatama tells the story of a war between the forces of the Yamato and the Shogun Bakafu forces. To counter an impending attack from Bakafu general Ashikaga, Monkan of the Yamato forces enlists the help of demon kind from an alternate world. You take control of Shinato, a twin-bladed knight who's out to defeat the demon forces and, eventually Monkan. Magatama is a pure action game, mutiple twin blade attacks and combos can be performed with simple controls, and the fighting engine allows for battles with numerous enemies simultaneously.
All I remember is that night... The dark dragon has closed the gate to the sun. And light vanished. All living creatures became dark... Only carrying what's left behind... the eternal pain.
In the darkness that has lost light… True dark action begins.
Galaxy Deka Gayvan is a brawler. Players can choose to control either of the two heroes, or both of them in a co-op mode. Like in other beat-em-up games, the player must defeat all the enemies on screen in hand-to-hand combat before being able to proceed. Both Hiro and Michiko can accumulate special energy (dropped by the enemies along with health power-ups and money) that allows them to transfer into the superheroes Gayvan and Mittchi and stay in that form until they run out of energy. The superhero forms are stronger and are able to execute special attacks.
In addition, a two-player versus fighting mode is included. Players can choose either the protagonists or three enemy characters to compete against each other in one-on-one fighting.