Jet Set Willy X

Jet Set Willy X is a videogame by Twibright Labs for the Sinclair ZX Spectrum computer heavily inspired by Jet Set Willy.

"Thank you for making Jet Set Willy X! It gave me a lot of fun to play and I really enjoyed it!" -- Daniel 'Jet Set Danny' Gromann

Download - emulator

Download the jswx.sna - a SNA file that can be loaded into most ZX Spectrum emulators. There is also a TAP file should you have a problem with the SNA file.

Download - Sinclair ZX Spectrum

To play on the original computer, download the gzipped WAV file. Unzip it. Type LOAD "", press ENTER and play the WAV into the computer on suitably high volume.

Youtube walkthrough video

Youtube video based on a RZX file created by Daniel Gromann.

Video preview (69 sec. with soundtrack)

Ogg Theora (690kB)
MPEG4 ASP AVI ("DivX") (1.5MB)
WMV in AVI (500kB)

The tune playing in the video isn't the actual output from the computer, but a MIDI file (Ogg Vorbis , MP3) by Alan 'Factor6' Petrik, which was used to program the tune into the game.

How to run the game

You need a ZX Spectrum emulator. I used Spectemu on OpenBSD, but there are many others. Some of them are allegedly even for mobile phones!

Then you run the emulator and give it the jswx.sna file, which if the most supported ZX Spectrum snapshot format. My emulator can emulate even the 2-channel tune.

Differences from Jet Set Willy

There are no guardians, however there are places where you are probably going to swear even without them.
The guy walks twice as fast, the animation is smooth 50Hz instead of 25Hz, the guy has twice as much positions and the sprites are a bit different
There are no ropes
There is a 2-channel tune instead of 1-channel
The guy can fall through a 1-character hole
The rooms are 20 chars high instead of 16
There are much more available different characters in one room
The attributes in the room are not used to encode meaning of the characters, they can be set arbitrarily
What happens after the game is completed is a bit more fun
The jump looks a bit different
When the guy enters a room from sideways, he doesn't start 1 character away from the edge, but at the edge
The kill and collect sounds are different
The kill and collect events generate an effect in the border
The main voice of the tune continues playing during the kill or collect sound
The initial scrolling of text is pixel-smooth
There are 69 rooms and over 390 items to collect

Development files

README
assembler source
Manchester loader source
rooms
characters
title screen
Willy sprite
SNA file header
Makefile - works only within the Ronja tree, otherwise you have to remove the path prefixes from the filenames.

Automatically generated files

World of Spectry Entry

World of Spectrum entry on Jet Set Willy X. Includes a game map.

History

I wrote the game roughly between 1993-1996 (I was 14-17 at that time) and put it together in 2006 (filled in couple of missing rooms). Alan Petrik did the music for which I wrote a player routine in 2006. I also optimized the graphics code to get more % of the vertical interval playing music. logout128 fixed the titlescreen.

Licence

The game is released under the GPL.