Editing Jet Set Willy (section)

== Legacy ==
=== Expanded versions ===
''Jet Set Willy: The Final Frontier'', an expanded version for the [[Amstrad CPC]], was later converted back to the [[ZX Spectrum]] and released as ''[[Jet Set Willy II]]''.<ref>{{cite web|url=http://www.jdawiseman.com/papers/games/jsw2/jsw2_programmer_comments.html|title=Programmer comments on JSW2 — Steve Wetherill and Derrick P. Rowson|last=Wiseman|first=J|access-date=18 December 2022}}</ref> Both the original game and ''Jet Set Willy II'' were released for the [[BBC Micro]], [[Acorn Electron]], [[MSX]], [[Commodore 16]] and [[Commodore 64]].

A differently expanded version of ''Jet Set Willy'' was released for the [[Dragon 32/64]], with extra rooms.<ref>{{cite web|url=http://jswremakes.emuunlim.com/Systems/dragon.htm |title=Jet Set Willy Remakes: Dragon 32/64 |publisher=Jswremakes.emuunlim.com |access-date=2011-03-25}}</ref> This version could also not be completed as it was impossible to traverse ''The Drive'' in a right-to-left direction, which was necessary to return to bed after collecting all the items. The game could, however, be completed using a built-in cheat, accessed by holding down the keys M, A and X simultaneously, allowing the player to start Willy from any position on any screen, using the arrow keys and spacebar.

The Dragon port was itself converted to run on the [[Acorn Archimedes]] computers. Better collision detection meant that "The Drive" could now be completed right-to-left, unlike on the Dragon.<ref name="Archimedes port based on Dragon 32 code">{{cite web|url=http://jswremakes.emuunlim.com/Systems/acorn.htm |title=Archimedes port based on Dragon 32 code |publisher=Jswremakes.emuunlim.com |access-date=2011-03-25}}</ref>

===Third-party modifications===
In its original Spectrum version, the rooms themselves are stored in a straightforward format, with no [[data compression|compression]], making it relatively easy to create customised versions of the game.

The review of JSW in issue 4 of ''Your Spectrum'' included a section entitled "JSW — A Hacker's Guide"; remarks in this section imply that the author had successfully deduced at least some of the data structures, since he was able to remove sections of wall in the Master Bedroom.<ref name="yr04_60" /> The following year, issue 13 contained a program that added an extra room ("April Showers") to the game,<ref name="russandem"/><ref>[http://www.users.globalnet.co.uk/~jg27paw4/yr13/yr13_41.htm "April Showers"], Your Spectrum, Issue 13, April 1985</ref> and issue 15 described the data formats in detail.<ref>[http://www.users.globalnet.co.uk/~jg27paw4/yr15/yr15_33.htm "Interior Decorating"], Your Spectrum, Issue 15, June 1985</ref>

Several third-party editing tools were published between 1984 and 1986, allowing players to design their own rooms and sprites.{{citation needed|date=June 2018}}