Major Stryker is a 2D vertically scrolling shooter video game written for DOS by Apogee Software.The game was re-released as freeware on March 14, 2006, and on Steam with support for Microsoft Windows and macOS in 2014.Major Harrison Stryker, a World War III veteran, goes on a mission to wipe out the Kreton military installations on the three elemental planets within their galaxy.The only named characters are the eponymous hero and Fleet Admiral Yoshira, an attractive, often flirtatious woman who briefs Stryker between missions.H and S both have a double edged sword quality, demanding the player carefully consider when to pick them up; H releases a fleet of enemies on opposing sides of the screen, and S increases the jerkiness of the ship, making it impossible to maneuver or aim with precision.