Dragon Spirit is a 1987 vertical scrolling shooter arcade game released by Namco and Atari Games (in the US). It runs on Namco System 1 hardware, and was later ported to the Nintendo Entertainment System, Amstrad CPC, Commodore Amiga, Commodore 64, DOS, Atari ST, Sharp X68000, TurboGrafx-16 and ZX Spectrum platforms.
An altered version of this game appeared on the Nintendo Entertainment System under the title Dragon Spirit: The New Legend. A sequel named Dragon Saber was released in 1990, which allowed two players to play simultaneously.
Additionally, Dragon Spirit was released for TurboGrafx-16. This version retained most of the original arcade graphics and sound quality.
An emulated arcade version of Dragon Spirit appears in Namco Museum 50th Anniversary and Namco Museum Vol. 5 . However, the Nintendo GameCube, Xbox and PlayStation 2 versions of 50th Anniversary are missing the continue feature (which is found on the PC version).
Dragon Spirit is also on the Japanese version of Namco Museum for PSP.
On July 2, 2007, the TurboGrafx-16 version of game was added to the Nintendo Virtual Console, and on September 8, 2009 the arcade version is being released as part of the Virtual Console Arcade in Japan.
On November 4, 2008, it was released on Xbox 360 as part of Namco Museum Virtual Arcade.
Source: Wikipedia, "Dragon Spirit", available under the CC-BY-SA License.