Ninja Gaiden/Versions

8-bit home computers
In 1990, Ocean published the conversion of the arcade game to three popular European 8-bit home computer systems: the Amstrad CPC, the Commodore 64 and the Sinclair ZX Spectrum, under the same title that the arcade was published in Europe, "Shadow Warriors". The conversion were developed by Teque Interactive. Because the arcade game upon which they are based was so much more powerful, significant cuts had to be made to the conversions in terms of content and quality.

16-bit home computers
Similar to the 8-bit versions described above, Ocean published the conversion to two popular European 16-bit home computer systems: the Atari ST and the Commodore Amiga, in 1990 under the title "Shadow Warriors". These conversion were also developed by Teque Interactive. Because these two systems were much more powerful, they were considerably more faithful and accurate to the arcade version, with extremely similar graphics, and only minor cuts to some of the animation frames. Due to a slightly limited palette of colors, some of the brighter colors were toned down, giving some of the backgrounds a more realistic appearance.

Atari Lynx
Developed by Blue Sky Software and published in 1991 by Atari, this is the only conversion of the arcade game to a handheld system. It is remarkably faithful to the arcade game, despite missing two stages (Acts II and IV have been removed.) It also features a lower quantity of both the types of enemies you face, and the numbers that you encounter throughout each stage. Almost every other feature makes it into the game. Grabbing and hanging from poles is possible, and the Flying Neck Throw move is possible even though no animation plays to indicate that it was successful.