Gyruss is a shoot-’em-up published in 1984 by Parker Brothers for the ColecoVision console and based on the Konami arcade version. GDX has converted this game for the MSX system, by basing his work on the Mission emulator, with SCC sound by default and improved support for keyboard and joysticks. Besides, a turbo mode is activated for MSXturboR machines and some MSX2+.

The recommended mapper is Konami SCC, with ASCII 16 compatibility.