ZZT On ZZT

One of the unique aspects of ZZT is its capacity to be used as a medium for publishing about ZZT itself. Various company magazines, best-practice guides, and reference encyclopedias (collections of cool things you can do) were created throughout the years. However, the drawback of publishing information in this way is that you can't get to it easily without loading the world files in ZZT and actually playing them. The Museum of ZZT File Viewer helps greatly with this visibility problem, but the content is still spread across several publications.

This page will list out the topics of such files, specifically focusing on how-to guides. For company magazines, see: ZZT Magazine Directory

Notes and Warnings

• For inquiries on this list, you can contact me. Keep in mind that this is mostly just hyperlinks to content on Museum of ZZT, which I have donated and submitted games to, but do not own or administer.

• The Title, Author and Year fields are taken from the Museum of ZZT directly, and could potentially change at any time. In-game copyright notices and such may be different. Worlds are listed by release date of the first version preserved.

• Files linked here may contain offensive or NSFW content. They may also contain incorrect information, or just plain bad advice (please do not use any of the ZZT anti-cheat measures described herein).

Roadmap

World	Board / Contents Listing	Details and Categorization
DEMO.ZZT	X
TOUR.ZZT	X
Learn ZZT	X
ZZT Editor Trainer	X
ZZT Syndromes	X
The UNOFFICIAL ZZT Programming Guide	X
ZZT Encyclopedia	X
Cliche: a Guide for the Advanced ZZTer	X
ZZT Crime
Emon's Guild To ZZT
Mystical Winds Encyclopedia	X
ZZT Pro
ZZT Programming Tricks and Techniques	X

DEMO.ZZT

Author: Tim Sweeney

Year: 1991

Description: "An interactive demonstration of the properties of various items, creatures and terrains in ZZT."

• Museum of ZZT: https://museumofzzt.com/file/z/zzt.zip?file=DEMO.ZZT&board=0

Contents

Items

• Items Main Page
  • Ammo
  • Torches
  • Dark Rooms
  • Gems
  • Scrolls
  • Bombs
  • Keys
  • Doors
  • Duplicators
  • Energizers

Creatures

• Creatures Main Page
  • Centipedes
  • Bears
  • Ruffians
  • Lions
  • Tigers
  • Objects
  • Slimes
  • Spinning Guns
  • Pushers
  • Sharks (No subscreen.)

Terrains

• Terrains Main Page
  • Water
  • Forest
  • Solids
  • Breakables
  • Fakes
  • Normals
  • Boulders
  • Invisible walls
  • Sliders
  • Blinkwalls (Blinker)

TOUR.ZZT

Author: Tim Sweeney

Year: 1991

Description: This is a sneak peek at the official ZZT worlds (Town of ZZT, Caves of ZZT, City of ZZT and Dungeons of ZZT), with playable demo boards.

• Museum of ZZT: https://museumofzzt.com/file/z/zzt.zip?file=TOUR.ZZT&board=0

Board appearances

• Town of ZZT
  • The Mixer: Tour, Source
• City of ZZT
  • Bad part of town: Tour, Source
  • The Elevator: Tour, Source
• Caves of ZZT
  • Engineer Required: Tour, Source
  • Key Puzzle: Tour, Source
• Dungeons of ZZT
  • Kennel: Tour, Source
  • Dungeons I: Tour, Source

Learn ZZT

Author: Chris Jong

Year: 1992

Description: "By the time you finish playing this tutorial, you should be able to create your own simple games to start out with."

Notes: Demonstrates various ZZT-OOP commands with some commentary on usage. Unlike many other worlds about ZZT, the player does not walk through the demonstrations, but rather observes from a corridor along the bottom of the screen, pressing buttons to activate the demos. Curiously, not all topics include object demonstrations.

• Museum of ZZT: https://museumofzzt.com/file/l/learnzzt.zip?file=LEARNZZT.ZZT

Contents

• Title screen

• Opening text

• Commands: Covers naming objects with @ and the :touch label.

• Commands [1]: Displaying messages (marquee text) and the #bind command.

• Commands [2]: Directions, stacking movements together (/e/e to move east twice), and the #send command.

• Commands [3]: #become and #change

• Commands [4]: #clear and #set. (Note: the ZZT flag limit is 10.)

• Commands [5]: #if, #char

• Commands [6]: #cycle, #endgame

• Commands [7]: #go, #die

• Commands [8]: #give, #idle

• Commands [9]: #play, #lock and #unlock

• Commands [10]: #put, #restart

• Commands [11]: #try, #shoot

• Commands [12]: #take, #throwstar

• (There is no 13)

• Commands [14]: #walk, Movement shortcuts

• Commands [15]: (Outro text)

• Credits

ZZT Editor Trainer

Author: Herbie Piland

Year: 1994

Description: "This Zzt World shows you examples of nearly every command, message, and item on the Zzt Editor!! It goes from simple to complex so no prior use of the Zzt Editor is needed to understand."

Notes: This covers built-in creatures and terrain, but stops short of describing how objects work. There are multiple topics per board. There are two copies of this on the museum dated 1994 and 1995, but the ZZT files are identical.

• Museum of ZZT: https://museumofzzt.com/file/z/EDITRAIN.ZIP?file=IA.ZZT&board=0

Contents

Board 1

• (Introduction)
• Lesson 1: Keys and Doors
• Lesson 2: Passages

Board 2

• Lesson 3: Solid and Normal Walls
• Lesson 4: Fake Walls

Board 3

• Lesson 5: Breakable Walls and Ammo and Bombs
• Lesson 6: Invisible Walls
• Lesson 7: Blink Walls + Lesson 8: Text + Lesson 9: Gems (Three topics in one object)
• Lesson 10: Water
• Lesson 11: Duplicators ( or Doublers )

Board 4

• Lesson 12: Torches and Darkness
• Lesson 13: N-S Sliders and E-W Sliders
• Lesson 14: Rocks

Board 5

• Lesson 15: Spinning Guns and Stars
• Lesson 16: Ricochets
• Lesson 17: Movers ( Conveyors )
• Lesson 18: Forests
• Lesson 19: Pushers
• Lesson 20: Energizers
• Lesson 21: Transporters

Board 6

• Lesson 22: Slimes
• Lesson 23: Sharks
• Lesson 24: Lions and Ruffians
• Lesson 25: Bears
• Lesson 26: Tigers
• (Conclusion)

ZZT Syndromes

Author: Barjesse

Year: 1996

Description: A classic in its own right, Barjesse guides new ZZTers through issues and mistakes that were common in the AOL era.

• Museum of ZZT: https://museumofzzt.com/file/z/syndrome.zip

• MoZZT Closer Look: https://museumofzzt.com/article/318/closer-look-zzt-syndromes

Topics

Goofy Syndromes

• Big-empty-room Syndrome and Yellow-border Syndrome
• Big-pile-of-monsters Syndrome
• I-gotta-fill-in-the-board Syndrome
• A demonstration of Creative Contours
• One-way-board Syndrome
• Outta-sync-doors Syndrome
• ie-Ca'nt-spel Syndrome
• Zero-plot Syndrome
• Poor-man-with-a-big-dog Syndrome

Fatal Syndromes

• Not-enough-ammo Syndrome
• Not-enough-health Syndrome
• Overwhelming Opposition Syndrome
• Too-many-stars Syndrome
• Tryme-trap Syndrome
• Gimme-money Syndrome
• Ping-pong-path Syndrome

The UNOFFICIAL ZZT Programming Guide

Author: Corey "Des" Garriott

Year: 1996

Description: "Want to begin ZZT programing? This game may silence some discordant items in your games!"

Notes: Describes itself as an 'intermediate' tutorial. The preserved copy seems to start on the wrong board. This is divided into a beginner section and then an intermediate section, both available from the intro board. Additional authors listed in-game: Mark McIntire and Others.

• Museum of ZZT: https://museumofzzt.com/file/u/coprogram.zip

Contents

• (Title Screen)
• hello! (Seems to be the proper start board)

Part 1

• Learning Change Command
• Learning Play Command
• Learn to make doors
• Learn enemy object making
• Learn good puzzle skills
• Learn to lock!
• Ending Sequence
• Goodbye! (1)

Part 2

• Generation Two
• Advanced Play Command
• Coloring Techniques
• Advanced Object Accessories
• Object Accessories TWO
• Put COMMAND
• Logo Building
• Helpful Hints
• Char/Set/Lock/Bind/Zap Commands
• Boringness
• The END

ZZT Encyclopedia

Author: Chronos30

Year: 1998, 2001

Description: A compilation of tricks, glitches and engine boards.

Notes: There are multiple versions of this preserved, and also earlier versions which are listed in a history file but don't seem to be available. The old version lists Chronos30 and JDMSonic as authors, but Chronos30 is the only author listed on the museum. I'm going to put off looking into this for now, and just list out the contents of the latest release as that seems to have the most utility. Descriptions and cross-referencing will have to wait another day.

Category 1: Colors v1.13

• (Title Screen)

• Fades
• Glowing
• #put any color
• #color 1
• #color 2
• Other colors
• Color flashes
• Color sensor
• Keep Background
• Carpet
• Text colors (updated)
• Activated Fades
• Scroll Random
• Color Password

Category 2: Player Clone v1.17

• (Title Screen)

• Object Transporter
• Give items
• Step Logger
• Coordinates
• Anywhere Transport 3
• directtype
• Key Transport
• #put LitBomb (old)
• Illusion, Illusion Room, Board w/passage
• Faster torch/energize
• #put LitBomb
• Anywhere Transport 2, Anywhere Transport 2b
• Anywhere Transport, New Board
• Direction Logger
• Bullet Logger
• Space Bar
• NextBoard Transport, Next Board
• Shooting Scrolls
• Player hold engine

Category 3: Weapons v1.15

• (Title Screen)

• Sword Engine
• Bomb Engine
• Machine Gun
• Grenades
• Better Bombs
• Anti-Shoot
• Nukes
• Indestructible Bombs
• Boomerang B
• Boomerang Engine
• Weapon Selector
• 6-Shooter
• SEEK Bug
• Enemy Ammo
• Infinite Ammo
• Wave Gun
• Super driller
• Remote Mines

Category 4: Counters v1.17

• (Title Screen)

• Shopping
• Time A
• Counter Testing
• Time B, Time B 2
• Counter Setting
• Counter Flags
• Counter Maximum
• Status Engine
• Random Powerups
• Display Fixer
• #set health to
• T Pressed
• Inventory B
• Torch menu
• Game SuperSpeed
• Multi Value Gems
• Counter-to-counter test
• Physical counters

Category 5: Flags and Conditions v1.18

• (Title Screen)

• Flag Counters
• Counter Flags
• Composer's Engine, Composer's Room
• Pressure Plates
• Forest-to-Floor
• Color Sensor
• Memory Saving Tips
• AND
• #if at south edge
• If at edge
• Inventory Engine
• Custom Cheats
• Help File
• Password, Password ][
• Search
• Portable Store
• Quadrant Sensor
• Cross world item engine

Category 6: Anti-Cheats v1.2

• (Title Screen)

• Anti-flag cheat
• Anti-Zap 1
• Anti-Zap 2
• Anti-KEYS
• Anti-Dark
• Anti-gems
• Anti-health
• Anti-editor
• Anti-unlock
• Anti +-Flagname 2

Category 7: Board Edge v1.09

• (Title Screen)

• Warning, Warning 2
• Object 1, Object 2
• Border Illusion, Yellow Border
• Edge-Board Object
• Anywhere Transport 2, Anywhere Transport 2b
• Illusion, Board w/passage, Passage lead-in (illusion)
• Can't go that way!
• Trapped!, Trapped! 2
• ("Path Revealer") Before, After

Category 8: Randomness v1.13

• (Title Screen)

• Random Place, Random Place 2
• Bomb random
• Random Fighter
• Card
• Odds
• Shapeshifter
• Random slot machine
• Spider Web Engine
• Random Duplication
• General Randomness
• Timing slot machine
• dexter's gamething
• SEEK randomness
• Randomizer

Category 9: Game Engines v1.15

• (Title Screen)

• Racing Engine
• Arcade MaZe!
• mIMIC engine
• Side scroller
• Missiles
• Breakout Engine
• RPG Battle
• Running Battle, Gollum Chow, Up, Up and Away!, End of World
• Space Shooter
• LoC's UltraJumper
• Drawing Engine ][
• RPG Battle Engine
• ZShooter 2
• Drawing Engine
• Under Water
• dexter's colorlayr
• Racing Engine (A different one)
• rockpaperscissors
• Zombie Crap
• Jerina
• Sliding Puzzle

Category 10: Objects v1.15

• (Title Screen)

• Power Armor
• #bind
• Animation/Marquee
• Creditz
• 1 Object Fire
• Stars, Doors, etc.
• Clock
• Objects
• misc
• Double touch
• Alligned doors
• Terminating Loop
• Player Death
• Object Race
• Better combination locks
• Put tricks
• Diagonal Movement
• Cars
• Super Speed
• untitled (Seems to have duplicate info also appearing in Category 11 Miscellaneous / Messages)

Category 11: Miscellaneous v1.13

• (Title Screen)

• Messages
• Special Characters
• File Reading
• No Sound
• Moving Sharks
• Sound Effects
• Disappearing Path
• Clear message
• Runtime me!
• Paused Transport
• black wall method 1
• black wall method 2
• Slime Tricks

Cliche: a Guide for the Advanced ZZTer

Author: JoE

Year: 2000

Description: "It's kinda like a sequel to Syndrome. It tells you what NOT to do. Have fun and try to LEARN(barf) something!"

• Notes: Cliche is divided into two subsections: "General" and "RPG". The intro board contains a couple of talking points as well. The player is transported to the ending board after all demo objects have been interacted with.

• Museum of ZZT: https://museumofzzt.com/file/c/clichegui.zip?file=CLICHE.ZZT

Contents

Intro Board

• Press P Cliché
• Annoying Water Cliché - This is sort of hidden, and also appears in some other boards as a topic to be stumbled upon.

RPG

• About (Board introduction)
• Silent World Cliché
• Logic Games
• Scrolls
• Sword Swap
• Poor Writing Cliché
• Boring RPG Cliché (On a subscreen)
• Boring Cinema Cliché (On a subscreen)
• The Long Thin Pathway Cliché
• World of Cinima's Cliché

General

• The Infamous Author Cliché
• Drawing Help: First, Second, third and fourth subscreens.
• The Enigma Cliché
• Speedy Object Cliché
• The Dirty Bob Cliché
• Jail Cell Cliché
• Passage Left-Over Cliché and Distant Object Cliché: On a subscreen. This board is also accessible from the RPG branch's cinema boards through a hidden passage. It's unclear if this was intentional or an oversight, but the exit points back to the general board.

Outro

• The End

Other

• -untitled: Note on board organization.

ZZT Crime

Author: Wong Chung Bang, Scorch3000

Year: 2000 (Version 2), 2001 (Versions 5 and 6), 2007 (Version 8)

Description: "A ZZT world for newbies. Points out what not to do in ZZT files."

• Museum of ZZT:
  • Version 2
  • Version 5
  • Version 6
  • Version 8

Emon's Guild To ZZT

Author: Emon

Year: 2001

Description: "From basic stuff to cool tricks with ZZT-OPP." First topic is rooms with yellow borders.

• Museum of ZZT: https://museumofzzt.com/file/e/Emonsguild.zip?file=EMONGUID.ZZT

Mystical Winds Encyclopedia

• Author: Nanobot

• Year: 2002

• Description: "The Mystical Winds Encyclopedia is a collection of various engines and some information about how they work."

Notes: There are versions 1.0, 1.1, 1.2, 1.3 and 1.4 preserved on the museum site. I compiled a list of board links of the latest version, as with the Chronos30 encyclopedia. More detailed breakdowns will have to wait another day. Part C is just toolkits without commentary, but I've gone ahead with listing them because they include ZZT sound effects as well. This package also contains a number of reference docs and object libraries, which are listed out at the end of this section.

• Museum of ZZT: https://museumofzzt.com/file/m/Mwencv14.zip

Part A

• (Title Screen)

Game Engines

• MW 3D Engine
• MW Side-View Engine
• MW Bullet Sword
• MW Mouse Engine
• MW RPG Battle

Anti-Cheats

• MW Anti-HEALTH
• MW Anti-ZAP
• MW Anti-KEYS
• MW Anti-DARK
• MW Anti-TORCHES

Counter Functions

• MW Math Functions
• MW Set To Zero
• MW Set Counter
• MW Value Exchange
• MW Set Max Value
• MW Set Min Value
• MW Binary Conversion
• MW Password

Part B

• (Title Screen)

Overcoming Limits

• MW File Access
• MW Diagonal Movement
• MW More In-Game Colors
• MW New Elements
• MW Auto-Pause 1/2, MW Auto-Pause 2/2
• MW Give Any Item
• MW Remote Placement

Other

• MW Puzzle Techniques
• MW Text Attributes
• MW Player Coordinates
• MW Fading Bombs
• MW Painter By Player
• MW Submitted - Pachinco Machine
• MW Submitted - Dig Engine
• MW Submitted - Bullet Dodge AI
• MW Submitted - Randomizations

Extra

• MW Gem Eater
• MW Starfield Simulation
• MW 3D Plain
• * Joining Mystical Winds *

Part C

Toolkits

• (Title Screen)

• Mystical Winds TK - Items
• Mystical Winds TK - Creatures 1
• Mystical Winds TK - Creatures 2
• Mystical Winds TK - Terrain
• Mystical Winds TK - Text(AllClrs)
• Mystical Winds TK - Object Speeds
• Mystical Winds TK - LitBomb Fuses
• Mystical Winds TK - Duplicators
• Mystical Winds TK - Hidden Things
• Mystical Winds TK - Art Set
• Mystical Winds TK - Art Set Adv.
• Mystical Winds TK - Ultimate Art
• Mystical Winds TK - Obj. Lib 1.4A
• Mystical Winds TK - Obj. Lib 1.4B
• Mystical Winds TK - Smooth Shades
• Mystical Winds TK - RainbowLayout
• Mystical Winds TK - Txt/Clr Grid
• Mystical Winds TK - CharSummary 1
• Mystical Winds TK - CharSummary 2
• Mystical Winds TK - ZZT Sounds
• Mystical Winds TK - All IG Colors

Additional Documents

Note: The museum file viewer doesn't parse .doc files correctly, but they are mostly readable.

• mwencv14.txt: Main readme file.

• CharMap.txt: Info on the text mode character map
• exam.txt: ZZT technical information
• mod2zzt.txt: Information on converting MOD tracker music to ZZT #play commands.
• MW Command Reference
• MW Direction Reference
• MW Element Reference
• MW File Format
• MW Label Reference
• MW Location Reference
• MW Operator Reference
• MW Quick Reference
• MW Status Reference
• MW Template Reference
• MW Terminology
• MW Tips & Tricks (Note: This link doesn't go directly to the document because of the ampersand in the URL.)
• oop4ever.txt: "This describes a recognizable line of ZZT-OOP. It is in standard DOS parameter format."
• zexeinfo.txt: ZZT.EXE Modification
• zztop.txt: Explains the inner workings of some ZZT behaviors.

ZZL Object Libraries

• MWITEMS.ZZL
• MWCREATU.ZZL
• MWMISC.ZZL
• MWTERRAI.ZZL

ZZT Pro

Author: ChocoboKick, Kjorteo, Celine Kalante

Year: 2005

Description: "This is a how-to help utility world along the lines of ZZT Syndromes by Barjeese and ZZT Crime by Wong Chung Bang. ZZT Pro is essentially supposed to pick up where these two fine games left off."

• Museum of ZZT: https://museumofzzt.com/file/z/zztpro.zip?file=zztpro.zzt

ZZT Programming Tricks and Techniques

Author: zzo38

Year: 2018

Description: "Here are many kinds of tricks and techniques that may be used in ZZT. Some of them need external editors such as ZZTQED (which was used to make this world file). There are a lot of possibilities! Look at many of these programs using the editor to see how they work. If you are reimplementing ZZT, it might also help to look at these things, to see if they function properly."

Notes: Boards contain multiple subsections arranged by category.

• Museum of ZZT: https://museumofzzt.com/file/z/zztptt.zip

Contents

• (Title Screen)

• (Main Menu)

Arithmetic

• Greater than variable?
• Greater than constant?
• Double
• Binary storage
• Half
• Use of the TIME counter
• Take 1 of each

Flags and counters

• Fake walls
• Colours of objects
• Numeric flags
• Other board, Extra room for flags
• Doubling counters
• Invisible walls
• Messages
• Flag limits
• Repurposing counters

Strange directions

• (Board Intro)

• Animation (of idle transporters)
• Blink walls (with tweaked XY steps)
• Sensors (remote #if blocked <dir> check using tweaked XY steps)
• Remote #PUT
• Pusher interleave
• Duplicators
• Teleporting program (object tunneling through solid terrain with tweaked XY steps)
• Diagonal bullets
• Two hits (Separate board. Demonstrates an example of storing state with remote #put commands in the context of object binding.)
• Three hits (Separate board, similar to "Two hits")

Teleportation

• Auto board teleport (Using a duplicator, player clone and edge tile)
• (Unnamed) "Elbow" transport (Using objects and sliders to push a player through multiple transporters at once to travel down a non-straight path.)
• Location teleport (The classic player clone teleport)
• Unseen passage
• Noiseless teleport (On a subscreen.) This is the technique seen frequently in FlimsyTown to preserve the player's board position when traveling via edge tile.
• Programmed teleport (On a subscreen.) Places two player clones next to two passages such that moving in any direction causes the player to warp to another board.

Stats and statless elements

• (Board intro) Outlines the contents of this screen, and includes some information on player clones.
• The following statless elements are demonstrated along the top of this board:
  • WALLS
    • DUPLICATOR
    • SHARK
    • BLINKWALL
    • "(none)" (Horizontal blinkwall ray) (ID 33)
    • "(none)" (Vertical blinkwall ray) (ID 43)
    • PUSHER
    • OBJECT
    • "(none)" (ID 46)
  • CREATURES
    • LION
    • TIGER
    • RUFFIAN
    • BEAR
    • SEGMENT
    • HEAD
    • BULLET
  • OTHERS
    • "(blankname)" (Board edge) (ID 1)
    • STAR
    • PASSAGE
    • SCROLL
• Changing destinations (shifting a passage onto a new stat with a different board destination)
• Scrolls:
  • Scroll with XY steps
  • Cycle 0 Scroll with no flashing animation
  • Cycle 3 Scroll with slower animation
• Stat breakables
• Stat boulders
• Stat inheritance
• Instant explosives!
• More explosives (Subscreen)

Centipedes

• (Board introduction)
• Remote (Bomb linked to a segment)
• Intelligence
• Reversal (Includes a stat slider as segment)
• Moving stuff (Includes stat ricochets and a transporter as segments)
• Sleeping

Darkness

• (Board intro)
• Torch outline mask
• Statless player clone mask
• Revealing hidden torches with stat inheritance
• Pushing statless player clones to move visible entities in the dark

Miscellaneous

• Locked player movement
• Program colours: Method 1, Method 2
• Enter board triggers (Subscreen)
• Gate
• Warnings (Subscreen) (Touching a scroll on the edge of a connected board)
• Password (Subscreen)
• #BECOME colours
• Fast energy (Subscreen) (Consuming energizers faster with player clones)
• Messy lines (#change line line)
• Fast movement
• Put colours

Undocumented features

• Ricochet
• SEEK
• #GIVE/#TAKE
• Put next to south edge -- Demonstrates that #put along the bottom row is not possible.
• #CHANGE and #PUT
• #IF ANY and Monitors
• Duplicators and Edges
• #RESTART -- Includes notes on zapping restart as a label.
• #SEND
• Cheat codes -- Small addendum: though I'm not sure how useful this is, the cheat prompt is accessible on the title screen by pressing the "|" key.

Blink walls

• Fakes
• Recolouring
• Preset beams
• Stat beams
• Unblocked west (Player being pushed onto other entities by a vertical blinkwall ray)

More miscellaneous

• Passages (Under element following the player upon stepping off a passage)
• Star field
• Disappearing passages (When stepping off of one and onto another. Additionally, demonstrates some odd behavior with stats underneath the destroyed passages.)
• False room (Subscreen with explanation)

More about stats

• Speed (Tweaking the cycle setting of built-ins)
• Fast player movement ("Black hole" empties with stats)
• Creatures parameters (On a sub-screen.)
• Bullet paths
• Simultaneous execution (Running multiple pieces of code in one location using stacked stats.)
• Collectibles
• Bear
• Moving stuff when a program dies (On a subscreen.)
• Pushers over stat fakes (On a subscreen.)

Bullets and stat water

• (Board intro)
• Explode
• Teleport
• Passage
• Transporters

Duplicator bug

• (Board intro)
• (Second duplicator board) (Subscreen)
• (Third duplicator board) (Subscreen)

What is this strange stuff???

• (Board intro) - This board links back to the Centipedes section, but I wasn't able to find a link to it in the other direction. I may have missed it, or it may be well-hidden. This board demonstrates a very odd behavior when a player is linked to a Centipede.