1. Arcade 0:45 <br />2. ZX Spectrum 4:13 <br />3. Apple 2 7:02 <br />4. Amstrad 10:30 <br />5. Commodore 64 13:18 <br />6. MSX 16:07 <br />7. Nintendo Entertainment System 19:36 <br />8. MS DOS 23:04 <br />9. Atari ST 25:53 <br />10. Amiga 29:21 <br /> <br />The arcade game was later ported by U.S. Gold to the <br />Amstrad CPC, Commodore 64, MSX and ZX Spectrum <br />(developed by Paragon Programming) in 1987. <br />The game went to number 2 in the UK sales charts, behind <br /> Renegade. During the same year, Mindscape ported it to <br />the Atari ST and the Commodore 64 (different compared to <br />U.S. Gold's version). In 1989, Mindscape ported it to the <br />Commodore Amiga and personal computers that use MS-DOS. <br />The NES version was ported by Tengen in December 1988.
