Galaxian conversion

The game Galaxian by Namco was released in 1979 on arcade machines in Japan and saw the light of day one year later in arcade halls across North America. A Colecovision version was finally made in 1983 and an MSX version followed one year later. The MSX port was, once again, a slightly tuned-down version of the game where some elements such as a 2 player mode and difficulty settings were not included. Recently, MSX user GDX ported the Colecovision version of the game to MSX in order to get a more complete version of the game including the aforementioned 2 player mode and difficulty settings. The conversion is based on the Mission Colecovision emulator for MSX and features some nice improvements such as improved support for keyboard and joysticks. Also, a turbo mode is available for Turbo-R and some MSX2+ machines.  

Relevant link: Galaxian