Game Platforms



Cheat :

Print diploma:

Enter 8768 as a code and 89427613 as a password.

Level Password

2 18780766

3 10232399

4 32882199

5 13794470

6 28197802

7 17087807

8 51761122

9 83882268

10 60761220

11 26934896

12 20236216

13 10567522

14 88146785

15 46784817

16 66615201

17 82056007

18 99008400

19 39054274

20 06283176

21 22241430

22 27045895

23 65321590

24 18100447

25 38812662

26 71534924

27 41327882

28 08043661

29 74563066

30 59226747

Walkthrough :

The object of the game is to find and open matched pairs of oxyds (see

below). Simple? Yes. Easy? Definitely not. The designer has drawn 100

different landscapes which will test your ingenuity, cunning, forethought and

lateral thinking, as well as your mouse control technique. The landscapes

increase in difficulty and you will quickly realise that the designer has a

devious mind and is a master of misdirection. Much of the enjoyment in

solving a level comes from overcoming the obstacles and problems that are

thrown at you (sometimes literally!) Fortunately you are not playing against

the clock - some levels can take at least two days concentrated work before

they are finally solved. The pleasure of playing Oxyd comes from the

different skills required; sometimes fast reactions and speed of movement, at

other times forward planning and calculations. Very few of the levels can be

solved at one visit (remember to write down the password number); usually you

will have to master one area and then go on to the next, and then the next,

until you finally triumph. Warning: playing Oxyd may spoil you for any other

computer game!

Moving the marble

At the start of each level you have 3 marbles (lives). There is a black

marble on the screen and two at the bottom of the screen in reserve (extra

lives sometimes appear in the landscape and can be picked up). The marble is

controlled by the mouse and you can move it as fast or as slowly as is

required in any situation. Most care is needed when moving along narrow paths

over the void; and also when hitting blocks to move them - you can get a very

nasty rebound! When a marble is destroyed the new marble appears at the

original starting point.

You may need to adjust the tracking speed for the mouse. If it is set too

fast, the marble tends to get out of control. If it is set too slow, levels

requiring fast reactions may be impossible to play.


These appear in two forms; black and white diagonal squares which open like

flowers (level 2), or plain black blocks where the top peels away (level 1).

Symbols are revealed when the oxyds open but only one oxyd opens at a time

until you find matching symbols. They can be opened by rolling the marble

against a side but the black and white squares can also be activated by

touching the corner (level 15). They can be triggered by a laser when it is

not possible to reach them (level 3). There may be only one pair to open, or

as many as 8 pairs; although usually there are 4 oxyds (2 pairs) or 6 (3

pairs). In complicated levels you will probably need to note down which oxyd

reveals which symbol, but be warned they often change if you have to re-start

the landscape.

Meditation landscapes

These landscapes appear after each nine levels and are well described in the

Oxyd Book as nerve-wracking. They consist of a landscape with four craters

into each of which a small ball has to be placed. The problem is that the

mouse controls all four balls at the same time so that any violent movement

to place one ball affects all the others and may remove a ball already in a

crater. Meditation seems a singularly inappropriate description as they lead

to more frustration than the preceding nine levels put together. Controlled

mouse movements are essential even at the nth attempt.

Oxyd Book

A humorous little volume which is an absolute necessity after level 10. It is

impossible to do level 11 (and future levels) without the secret codes which

destroy the magic tokens (the ones with the number on them), and all the

secret codes are in the book. The book also contains tips and tricks , and

many helpful hints and descriptions. It is also very funny.

Level 1

An easy landscape to get you started

Tip: work from the sides as much as possible

Hint: try to avoid triggering the rotor and don´t fall in the swamp.

Level 2

Another easy one

Tip: the laser can destroy blocks.

Level 3

Your introduction to movable mirrors

Tip: there is a pattern to the positions of the mirror.

Hint: beware of the chasm.

Level 4

Introduces umbrellas and mouse reversal

Tip: use the first umbrella to collect more for future flights.

Hint: the ceiling isn´t solid.

Level 5

The first sighting of porthole blocks and flashing lights.

Tip: the gates are opened by porthole blocks and/or switches.

Hint: the floor isn´t solid.

Level 6

Bombs and dynamite!

Tip: a lot of the objects are irrelevant, if not downright dangerous. Avoid

switching the laser on.

Hint: you only really need two explosions, around the inaccessible oxyd.

Level 7

This time the porthole blocks and lights will produce bridges.

Tip: take a bit of time to work out which block covers which light. It isn´t

always as obvious as it seems.

Hint: don´t get trapped in the top left corner. Make sure you move the two

blocks in the right order.

Level 8

This level isn´t as difficult as it first appears - don´t panic!

Tip: don´t try to control the marble on the path, otherwise you will fall


Hint: as soon as you´ve passed the 2 arrows, top and bottom, have a coffee

break. This will allow you to survey the scene and should stop you falling in

the water.

Level 9

The most difficult landscape so far.

Tip: you will need to destroy all the bomb tokens but make sure you can still

move around to activate the oxyds. You will have to cross the rotten

floorboards twice so take care.

Hint: the order in which you do things is important. Take out the bomb token

in the top right first.

Floors, surfaces and backgrounds

a. Wood

There are different patterns of wooden floors. The "parquet" pattern has a

nasty habit of breaking up (level 11) but with care it can be negotiated.

b. Stone

c. Woven

d. Tiles

Some tiles will also break up (level 8)

e. Ball-bearings

f. Slope tiles

These are marked with a white or black pattern (level 8) and will throw the

marble off unless great care and/or speed is used.

g. White tiles (marble movement reversal)

These present an interesting problem in mouse control as up is down and left

is right, and vice versa (level 4). Even more fun is the chess board where

the black tiles are normal and the white ones reversed (level 87)

h. Water

Not unnaturally you drown in water (level 8), but there are some levels where

the marble has to leap across a stretch of water at least once; in one

particularly difficult level several jumps are needed

i. Ice

The marble just skates around with no traction unless there is a spike

available, probably hidden from immediate view (level 15)

j. Quicksand/ swamp

Speed is the key here. If the marble stands still or moves slowly, it will

sink (level 1)

k. Space

When you see blackness with stars it is usually OK to move the marble out

there (level 14) but the marble will not respond to the mouse and you will

have to wait until it bounces off something to get it back.

l. Blackness

This will kill the marble every time unless you have some way of negotiating

it (level 4). Be careful moving at the edge of the screen into another part

of the landscape as the designer tends to lay traps (level 3)

Tokens/ Blocks

a. Plain white

These come in three varieties and the differences are not obvious until the

marble touches them. There are solid unmovable ones, which can sometimes be

blown away with dynamite or smashed with a hammer, assuming that these are

available to you; solid movable ones which can be pushed around and will

disappear in blackness, and ones that the marble will pass under. They can

also conceal nasties which are not revealed until the marble touches them.

When moved over objects they can destroy or activate them

b. Black

These won´t move and sometimes hide oxyds (level 4) or ways to open gates

(level 19)

c. Wooden

These can be moved (level 6) and will form new planks when pushed into

blackness. Sometimes they will explode bombs if pushed over them

d. Outline

These can sometimes be moved but usually only when you can see something

inside them

e. Porthole

These blocks can be moved and are normally associated with flashing lights

(level 5). When the blocks are manoeuvred over the lights, they will open

gates (level 5), build bridges (level 7) or open passages.

f. Clock faces

Some of these change automatically, for example to control lasers, and others

can be altered by the marble (level 26)

g. Spring blocks

These are white blocks with a small cross on the top. They "uncoil" and push

other blocks away but have to be triggered from the correct place to work

effectively (level 29)


These reflect the ray produced by the laser and can be particularly difficult

to organise without a degree in higher physics. You may find it easiest to

draw a plan before arranging them as a mis-angled mirror can zap the marble

in a flash. Some of the solid mirrors can be moved (level 3). The angle of

any mirror is changed by touching it with the marble, either on the side, or

in tricky situations, just on the corner.

a. Solid

The least unfriendly of the three types of mirror. When angled it deflects

all the ray at 90 degrees

b. Non-solid

This deflects part of the ray at 90 degrees BUT allows the rest to pass

straight through.

c. Triangular

These are the most awkward mirrors to organise and the best description of

their function is in the Oxyd Book (page 24)


These will destroy a marble caught in the full ray; however it is possible to

move the marble so that only an edge is touching the beam which doesn´t

trigger an explosion. The lasers can be used to destroy blocks, trigger oxyds

(level 3) or trigger blocks to unlock gates, either directly or via one or

more mirrors. They can be switched on with a switch, or a coin. Sometimes

they are on permanently and care is needed to avoid being zapped. Lasers can

also be used to transform objects.


a. Rotor

The nastiest of all the nasties as they actively attack the marble (level 1).

However they have an attack distance so that the marble can avoid triggering

them. If they have to be passed in order to open an oxyd, it is sometimes

possible to explode a stick of dynamite and trap them in the crater (level

12). In a maze it is possible to trap them in a cul-de-sac but only at the

cost of having the marble destroyed (level 92)

b. Deaths head

These are fairly easy to avoid when visible. Unfortunately there are levels

where they only appear after they have eaten the marble (level 25), although

they do then stay visible

c. Black knights

These can only be neutralised with a sword (level 21) and it takes several

blows to cut them down to size

d. Whirlwinds

These attract the marble, suck it in and then either throw it out elsewhere

(level 10) or eat it.

e. Thieves

They hide in a white block until the marble touches it when they come out and

steal objects that have already been picked up (level 17). Security systems

include putting down anything you don´t want to lose and picking it up later;

mailing items (level 17), or picking up a lot of items that you don´t mind

losing, scrolls etc.

Objects can be picked up by rolling the marble over them and are of two types

(see below). They collect at the bottom of the screen and the one under the

arrow at the left can be placed by the mouse. Shift them around using the tab

key. They are of varying usefulness.

Objects - re-usable

a. Spade

This will fill in a crater caused by exploding dynamite and is only really

useful if the first explosion hasn´t worked and a second is needed

b. Dark glasses

These, if unbroken, will allow you to see invisible deaths heads

c. Spring

Sometimes the only way to cross empty space (level 11). Practice is advisable

before actual use.

d. Sword

Used to destroy the black knight (apparently based on Monty Python and the

Holy Grail)

e. Hammer

Will destroy certain blocks but you won´t know which ones until you hit them.

f. Spike

Used to keep control of the marble on ice (level 15)

g. Key

One way to open a gate

h. Floppy disk

Another way to open a gate (level 27)

Objects - once only

a. Umbrella

Another way to cross empty space (level 4). However there are disadvantages

which include limited duration, not being able to control the marble, and

only being able to use each umbrella once. However they will also protect the

marble from laser beams, deaths heads and thieves.

b. Cherries

These turn the marble invisible which means that your enemies can´t see you.

c. Cup of coffee

Halts the movement of the marble until the mouse is clicked again (very

useful in level 8)

d. Dynamite (see bombs below)

This is needed to detonate bombs.

e. Seeds

These, when placed in position, grow into wooden blocks which can then be

moved (level 66)

f. Coins

Come in three denominations, 1,2 and 4. The number indicates how long they

will work for.

Trampolines and trapdoors

Two types of subterranean movement. The trapdoor opens automatically and

ejects the marble somewhere else. The trampoline is more complicated as the

mouse movement controlling the marble has to start just before the marble

exits from the hole otherwise the marble just bounces back down again (level



This needs to be struck with some force by the marble to shatter it (level

39). Unfortunately it is also easy to shatter the marble at the same time so

take care

One way arrows

Obviously the marble can only pass under the arrow in the correct direction

(level 8). However with free-standing arrows it is possible to slide under

them sideways (but you will have to find out yourself which level that

applies to)


Obviously used to post objects from one area to another (level 17). Normally

a pipeline is posted first and then the object.


These come in three types (level 6) and are usually detonated by dynamite

placed next to them, although a block moved over a bomb may trigger it. They

cannot be picked up.

a. Black

This bomb will destroy the tile it sits on when it is detonated.

b. White

When detonated, this more powerful bomb destroys the tile it is on and the

neighbouring vertical and horizontal tiles as well

c. Bomb token

A white block with a bomb symbol which will supply bombs when touched by the

marble. It can only be destroyed by a bomb and dynamite in combination.

Fortunately the tile on which it sits is not destroyed in the explosion


These are very useful when attempting a long and/or hazardous landscape

(level 11). If the original marble is destroyed, the new marble will appear

where the flag has been placed


These may open automatically when approached by the marble (if you´re lucky).

Otherwise a switch (level 5), key, floppy disk (level 27) or some other

method of opening will be needed. Dynamite doesn´t work.If using a floppy

disk don´t touch it while passing through the gate otherwise the marble will

pick up the disk and the gate will close and crush the marble. Also don´t

forget to retrieve the disk after passing through the gate as you will

probably need it again.

Puzzles and Magic tokens

These are extensively covered in the Oxyd Book.


The designer has left these in some of the landscapes. Sometimes they are

useful and sometimes they aren´t. However the Oxyd Book contains suggestions

for solving the most difficult landscapes, although their definition of a

difficult landscape may not coincide with yours, or ours (we hate level 31)

Sound can be useful

In a lot of computer games sound effects are just noise. However in Oxyd the

sounds can be actively helpful; for example, hearing a gate open although you

may not be able to see it, or the warning sound of a creaking floorboard. And

nothing beats the sound of a really BIG explosion.


Level 10 is the first meditation landscape and in itself is fairly easy.

However its main function is to set ALL your password numbers for levels

11-100. Therefore if you play it again without the Timed Game on, it will

change all the password numbers for levels that you have already solved from

level 11 onwards and you will no longer be able to access them.



As an insurance policy, copy the file named Oxyd Preferences from the

Preferences folder in your System folder to somewhere safe. This file

contains the codes which generate the password numbers. If the worst happens

and someone changes the codes by playing level 10, just copy the original

Oxyd preferences file back again.

The Link Game

So now you´re addicted to Oxyd, you´ve solved levels 1-100 and you´re

suffering withdrawal symptoms. What do you do?

You play the Link Game! Another 100 levels! Two marbles, one black, one


All you need is a friend (equally addicted to Oxyd), another Mac and some

method of linking both your terminals. (Technical details in the Oxyd Book)

Then 100 more landscapes are at your finger tips. But be warned that tempers

can flare and harsh words be exchanged; even hysteria has been known to