Resource centre for ZX Spectrum games
using Manic Miner and Jet Set Willy game engines
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Manic Miner & Jet Set Willy Yahoo! Group
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Message: 3837
Author: andrewbroad
Date: 01/12/2003
Subject: Bugs in _Jet Set Willy: Spectrum Computing_
I played the earliest JSW sequel, Mark Jeffries's _Jet Set Willy:
Spectrum Computing_, yesterday. Here are the critical bugs I found,
and my fixes:
1. The lower horizontal guardian in "Crusoe's Corner" [60] collides
with the floor, killing you.
POKE 41847,20 sets its right-boundary to the left of the floor.
2. There is an unreachable, invisible item in "Follow The Arrow!"
[28].
POKE 42183,11 moves this item to "The Dungeon" [11].
3. The item in "The Coal Cellar" [51] is unreachable.
POKE 50921,51 sets the left-exit of "Who's This ?" [6] to 51. This
solution also eliminates an infinite-death scenario.
4. The item in "Remembered-At Last!!" [19] is unreachable.
POKE 54081,86 puts a floor-block at (8,4) so that you can jump up for
it (stand on one leg).
5. The walls in "The Garden" [46] behave as conveyors, so you get
stuck at the right.
POKE 61133,68 gives Conveyor a different colour-attribute (BRIGHT 1)
from Wall.
6. The bottom-left item in "The Fruit Store" [49] is unreachable.
POKE 61913,17 shortens the conveyor by one character, allowing you to
jump into the wall and walk left.
I define completing a JSW game as follows:
1. A JSW game is /item-completable/ iff it is possible to collect all
the items without cheating.
2. A JSW game is /Maria-completable/ iff it is item-completable and
possible to get past Maria after she disappears.
3. A JSW game is /bed-completable/ iff it is Maria-completable and
you can reach the bed-column, triggering Willy to run towards the
toilet.
4. A JSW game is /toilet-completable/ iff it is bed-completable and
Willy can reach the toilet.
For the purposes of my "Bugs in Specific JSW Games" page, games are
only required to be Maria-completable - I do not necessarily consider
fixes to make them bed-completable or toilet-completable (for
example, _Willy's New Hat_ is only Maria-completable, and it is
clearly the author's intention to send the player to a special ending-
room rather than make it bed-completable).
With the above six pokes applied, _Jet Set Willy: Spectrum Computing_
is bed-completable. It can be made toilet-completable with the
following two pokes to turn four wall-blocks at the bottom-right
of "Down From The Lab" [34] into floor:
POKE 57967,5
POKE 57975,5
I completed _Jet Set Willy: Spectrum Computing_ with a toilet-time of
8:19am, using the eight pokes above, plus infinite lives (POKE
35899,0). I used snapshots only to recover from infinite-death
scenarios or one-way exits.
--
Dr. Andrew Broad
http://www.geocities.com/andrewbroad/
http://www.geocities.com/andrewbroad/spectrum/
http://www.geocities.com/andrewbroad/spectrum/willy/
http://www.geocities.com/andrewbroad/spectrum/willy/bugsi.html
P.S. Party Willy (Part 2) is now 23/64 written.
P.P.S. I've changed the front-page picture again. December's
screenshot is "Where Bluebirds Fly." from Party Willy (Part 1), which
is finished (I plan to release Part 1 on 12th April 2004, Part 2 on
23rd April).
P.P.P.S. Who or what is Sandy Sumerleze? (Room 58 of JSW:SC).
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