From StrategyWiki, the free strategy guide and walkthrough wiki

Contents 1 Amstrad CPC 2 Atari ST 3 Commodore 64 4 Commodore Amiga 5 MS-DOS 6 NES 6.1 Game Boy Color 6.2 Game Boy Advance 6.3 Wii Virtual Console 7 Sinclair ZX Spectrum

[edit] Amstrad CPC

Developed and published in the United Kingdom by Elite Systems in 1986.

[edit] Atari ST

Developed and published in the United Kingdom by Elite Systems in 1990. While it had the potential to be as accurate as the Commodore Amiga conversion, the graphics have been altered.

[edit] Commodore 64

Developed and published in the United Kingdom by Elite Systems in 1986. Later published in the United States by Capcom. Only contains four levels.

Screenshot

European box cover

American box cover

[edit] Commodore Amiga

Developed and published in the United Kingdom by Elite Systems in 1990. Later published in the United States by Capcom. Probably the most accurate conversion of the arcade game published on any system. Nearly pixel-perfect accurate.

[edit] MS-DOS

Converted by Pacific Dataworks Int. and published by Capcom in the United States in 1987.

[edit] NES

Originally ported to the Famicom for Capcom by Micronics. Published in Japan in 1986 and later released in the United States for the NES in the same year. This conversion preserved a majority of the game play while adding many more secret hidden items, and it gave the boss monsters invulnerability to one particular weapon. It has served as the basis for nearly as many conversions as the original arcade version has.

Screenshot

Famicom box cover

NES box cover

[edit] Game Boy Color

Based strictly on the NES version, converted for play on the Game Boy Color by Digital Eclipse and published by Capcom on December 1st, 1999. It features a zoomed in perspective of the screen. As a result, some of the secret item reveal positions have changed to make their effects more evident. It was not published in Japan.

[edit] Game Boy Advance

A release in the second set of the Famicom Mini series, it was published by Nintendo on May 21st, 2004. It is a near identical port of the Famicom version with a smaller vertical resolution. Everything else about the game remains unchanged including secret item locations, and cheat codes.

[edit] Wii Virtual Console

Released for download on the Wii Virtual Console on December 10th, 2007 in the United States. Gameplay is completely unchanged from the Famicom conversion.

[edit] Sinclair ZX Spectrum

Developed and published in the United Kingdom by Elite Systems in 1986. Generally regarded as the worst conversion of the game.