Introduction
Yam is a solider in the Potato Army. Many years ago the Potatos' Homeworld was invaded by a race of symbiotic
cybernetic organisms. Since then the Potatos have faced a lifetime of war. Recently the Potato Army has decided to
fall back, regroup and change their offensive strategy. But some soliders did not regroup. They were marked as
Missing In Action and left. However one solider was not happy with this arrangement.
Yam made it his mission to go out and "Bring Our Boys Home". There had been enough loss of life already and
Yam wanted to bring back as many soliders as possible, even if he died trying.
But one thing puzzled him. The aliens could have wiped out their planet in just a matter of months. But
they hadn't. The aliens could have taken all the resources they wanted and left. But they hadn't. What were
they really after? And why?
Controls
Title / Options
Arrow Up / Arrow Down | Change menu selection |
Arrow Left / Arrow Right | Change menu option |
Enter / Space / LCtrl | Accept |
Escape | Back |
Hub
Mouse | Move Cursor |
Left Mouse Button | Select Icon Option / Select Destination |
Right Mouse Button | Destination Information |
In Game (whilst on the ground)
Arrow Left / Right | Move Left / Right |
Arrow Up | Jump |
LCtrl | Fire |
Space | Activate Jetpack (once aquired) |
In Game (whilst swimming)
Arrow Up / Down | Swim Up / Down |
Arrow Left / Right | Swim Left / Right |
LCtrl | Fire |
In Game (General)
Tab | Radar Map |
P | Pause Game |
Escape | In Game Menu |
Misc
F10 | Toggle Full Screen |
Alt + Return | Toggle Full Screen |
Starting a New Game
From the Title screen select "Start New Game" then choose your difficulty level. Depending
on the difficulty you choose the game will play in a different manner. Below is a table of how
the difficulty level affects the game play,
Practice |
Optionally complete various tasks
Unlimited continues
(This is just a training level. It does not count toward the game)
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Easy |
Rescue MIAs
No further objectives (no Boss missions either)
Few Enemies
Enemies spawn slowly and in few numbers
Enemies attack rarely
|
Normal |
Rescue MIAs
Complete additional required objectives
Normal number of enemies
Enemies spawn normally and in normal numbers
Enemies attack normally
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Hard |
Rescue MIAs
Complete additional required objectives
Large numbers of enemies
Enemies spawn rapidly and in great numbers
Enemies attack constantly
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Extreme |
Rescue ALL MIAs
Complete ALL Objectives
Large numbers of enemies
Enemies spawn rapidly and in greater numbers
Enemies attack constantly
You must complete the mission within a set time
(This setting cannot be attempted until you have complete the game once)
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Keyboard Configuration
To change the controls select Keyboard Configuration from the Options screen.
The currently configured button will be displayed to the right of the action. To configure an
action highlight the action you wish to set (using the arrow keys on the keyboard) and then press Return.
The current button configuration entry will disappear and allow you to press the new key you wish
to use. After doing so the new button will then be displayed.
Repeat this process until you have configured all the keys you wish to.
If you wish to test out your configuration and tweak the settings to your liking it is recommended
that you start a game in Practice mode where you can easily tweak and buttons and test the output.
Joystick Configuration
Should you have a joystick / joypad connected then you will be able to configure the controls in this
screen. The controls that can be configured map to the actions that can be performed in the game. eg -
Up, Down, Left, Right, Fire, etc.
The currently configured button will be displayed to the right of the action. To configure a joypad
action highlight the action you wish to set (using the arrow keys on the keyboard) and then press Return.
The current button configuration entry will disappear and allow you to press the new button on your
joystick. After doing so the new button will then be displayed.
Repeat this process until you have configured all the buttons you wish to.
If you wish to test out your configuration and tweak the settings to your liking it is recommended
that you start a game in Practice mode where you can easily tweak and buttons and test the output.
Options
Various options are available to the player. These options can be set from the Title screen, the Hub or
from In Game. Highlight an option by pressing the Up or Down arrow keys and then the Left or Right arrow
keys in order to change the option's value.
Fullscreen | Toggles fullscreen mode. Either Off or On. |
Sound Volume | Changes sound volume. Slide the bar left or right to decrease or increase the
sound volume. |
Music Volume | Changes music volume. Slide the bar left or right to decrease or increase the
music volume. |
Output Type | Change the game's audio output type. You may select None, Mono or Stereo.
The game will have to be restarted in order for a change from Mono to Stereo to take effect. |
Auto Save Slot | Selects the save slot the game will auto save the game to. Choose from slots
1, 2, 3, 4 or 5. |
Brightness | Changes the brightness. Slide the bar left or right to decrease or increase the
brightness of the display. |
Blood and Gore | Toggles the blood during gameplay. Either Off or On. |
Configure Keyboard | Go to the key configuration menu. |
Configure Joysticks | Go to the joystick configuration menu.
(disabled if no joysticks are detected) |
How to Play
Playing Yam - The Killer Potato is very straight forward. If you have ever played games such as
Super Mario Brothers then you will get the hang of the game very quickly. Yam - The Killer Potato has
game play elements more closely related to The New Zealand Story though, since you have weapons with which
to attack and can do other things such as swim.
You can move Yam around the game world by using the arrow keys (see Controls) and using left CTRL to fire
your current weapon. Due to the nature of the game, there are no ammunition restrictions so you can use
your current weapon as much as you want. Also note that it is not possible to manually change weapons. To
change your weapon you must pick up a weapon icon.
Remember to keep an eye on your health (the red squares at the top of the screen). When you take damage
you will lose a red square (or more depending on how you were damaged!). Yam is killed when all his health
is depleted. At this point the game ends and you fail the mission. If you have reached a checkpoint before
this time you will be given the option to continue (see Checkpoints). You get health back by picking up
Cherries (a Potato staple diet). One Cherry restores on unit of health so grab them whenever you see them.
When swimming you have a limited amount of oxygen. Your current oxygen is represented by a set of blue
squares to the right of your health. When you are underwater these squares are slowly removed. Once they
run out your health will quickly begin to deplete, so don't stay underwater too long! You get oxygen back
when you are out of the water.
Yam - The Killer Potato is divded into various missions, each with their own objectives. Depending
on the level of difficulty you play on the number of objectives will change. For all difficulty levels you
will be required to rescue a certain amount of MIAs. Other difficulty levels will have other objectives
that you will be required to complete. See "Completing Missions" for more information.
Rescuing MIAs
To rescue an MIA you simply walk into them. They will then be automatically teleported back home.
This however is not always easy. Since you can only rescue an MIA by walking into them, you must first
be able to do so. Some MIAs will be in high places, others behind doors. You may have to over come
certain obstacles and other factors before you can rescue them.
Objectives
As well as rescuing MIAs, some missions have other objectives. These can vary from finding objects, to
defeating a certain enemies or number of enemies. Before a mission can be cleared you must first complete
all the required objectives. Special objectives, such as Exiting a Mission, can only be achieved once all
the other required objectives are completed. If that sounds complicated, don't worry, you'll get the idea!
See "Completing Missions" for more information.
You can see a list of objectives by pressing "P" to pause the game. This will also show each objective's
completion status, including how much more is needed to be done.
Completing Missions
In order to complete a mission in Yam - The Killer Potato, you will need to complete all the
required objectives. For most missions this will involve rescuing a certain number of MIAs. The required
objectives change depending on which level of difficulty you are playing on.
The mission "Grasslands" requires you to rescue 5 MIAs. If you have set the difficulty to Normal or above
then you will also be required to find a Transmitter.
During the course of the mission you will receive checkpoints. These checkpoints allow you continue
if you are killed during the mission. See below for more information.
Checkpoints
Upon completing objectives you will be awared a checkpoint. A checkpoint allows you to restart the mission
from a certain point if you are killed during play. When you are presented with the Game Over text, pressing
space will bring up the continue options. You may either restart from the last checkpoint or return to the
title screen. If you did not reach a checkpoint when you are killed you will simply be taken back to the
title screen without prompting.
Checkpoints are also awarded for rescuing half the number of required MIAs, all the required MIAs and the
total MIAs on a mission. So, if you are required to rescue 12 MIAs you will receive a checkpoint after
rescuing 6 and another for rescuing all 12.
When restarting you will restart from the location you were at when the checkpoint was awarded (or the
last place where you were on solid ground). You will
restart with half your full health and everything you did before you were killed will be the way it was (so,
if you saved an MIA after a checkpoint and were killed before receiving another you won't have to rescue
the MIA again). Checkpoints can only be used a maximum of 3 times. Everytime you receive a checkpoint notice
you will be allowed to continue a further 3 times. The number of continues remaining is noted in brackets
next to the Continue option.
Note that due to the nature of the game it is not possible to continue on Boss missions.
Game Over
The game ends when Yam is killed during a mission (his health is reduced to 0). At this point you will be
presented with a Game Over message. If you have managed to receive a check point (from completing objectives)
you will be given the option to return to this check point or quit to the title screen. Otherwise you
will be taken back to the title screen.
Hub
The Hub is the place you will spend time between missions. The Hub allows you to select which mission you
will next undertake and also give you information relating to the missions you have just done, which MIAs
you have currently rescued and some overall game statistics.
The hub can be effectively divided into three different areas - The Map, the Destination Bar and the
Action Bar
The main screen of the Hub is the map. The map will show various locations that can be visited (represented
by animated red shapes). Placing the mouse cursor over these locations will show their name just above the
cursor. To select a destination left click on the location. The Destination Bar will change to reflect the
name destination you have choosen. Right clicking on the location will display statistics about the location
(more on that in a minute!).
The Action Bar has 6 options - Start, Info, MIAs, Stats, Options and Quit.
Clicking on Start will allow you play the mission you have currently selected (as Selected Destination).
Info will display information about the destination you have selected. You will be shown how many MIAs you have
rescued in that area and which objectives you have currently completed. This will be useful to you later in the
game when you wish to revisit missions in order to complete them fully. A briefing is available for missions
that have yet to be cleared and an objective summary is available afterwards.
MIAs displays a list of all the MIAs that you have and haven't currently rescued. The list is updated once an
area is cleared. The list shows the MIAs names, locations and their status (Found or Missing). Like the Info
screen this is useful for discovering what levels need to still be rescued. Click in the Left and Right arrows
to scroll through the various pages.
Stats gives you some information on how you are currently doing in the game. Most of the information here is
just for fun. There are three pages, giving various bits of information. One thing to note - You may notice that
the Percentage Complete statistic fluctuates a lot. This is because this is a percentage of what is currently
known and not an overall percentage. So you may notice that at one stage it says 60% and then after finishing
a stage it says 55%!
Enemies
The aliens are now littered around the Potatos' homeworld. Most of them have taken over the bodies of Potato
soliders and are using them for their evil purposes. Some others travel around in their robot housing. Most
of the enemies are easily dealt with - A single shot will take them down. But what they lack in defence they
make up for in weaponary. Here are just a couple of the enemies you may encounter,
Pistol Potato |
 |
Once a cadet in the Potato army this Potato has been assimilated by the alien's nano technology.
Weak and poor shots, these Potatos can still cause Yam problems in large numbers. Their green colouring
is the result of alien's assimilation process. |
Eye Droid |
 |
A floating alien sentry. Given the ability to fly by its Anti Gav unit, it will attack
Yam on sight. Easily downed... but keep a safe distance, these suckers explode! |
Other Potatos, ariel and swimming enemies exist. Keep your eyes peeled...
Bosses
During the course of them game (except Easy) you will encounter Bosses. These are often Potatos that the
aliens have experimented on and transformed into hidious creatures. They are a lot stronger than normal
enemies, attack differently and are all very dangerous. Yam will have to confront each other these bosses
before he can move on. In some cases the boss's base area will also contain a item that essential to
Yam's progress within the game.
Galdov
Galdov is the alien leader. He looks strangely like the Potatos, except for the fact that he is entirely
robotic. He has been dubbed Metal Potato by the Potatos for his appearence seems to harbour a secret to the
Potatos past, the reason the aliens have attack their world and the myths and legends of "war".
A particular times in the game you will be required to battle Galdov. He is more powerful than regular
enemies and has more weapons available at his disposal. Don't linger.
Weapons
There are five different weapons that Yam can get in Yam - The Killer Potato,
Pistol |
 |
This is your standard weapon and the weapon that Yam always begins a mission with. Compared to the other
weapons it seems rather wimpy due to its slow during rate. However it is the only weapon that can be fired
underwater! |
Machine Gun |
 |
Somewhat the same as the pistol except for the high firing rate. This is a useful mission for clearing
large numbers of enemies quickly. |
Grenades |
 |
Grenades bounce around and explode on contact. The explosion is enough to take
out a few enemies within a small radius. Although grenades cannot be thrown underwater, it is possible to jump out of
the water and throw a grenade. Careful timing can help to tkae out enemies in the water. The explosion from your own
grenades cannot harm you, so don't worry. Grenades also have other uses, since they can be thrown into places
Yam may not be able to normally access... |
Laser Cannon |
 |
Slow to fire but has the devestating effect of passing through the enemy it strikes. A single laser bolt can take
out a great deal of enemies. It also bounces if it hits something solid, which means that it can strike enemies both
in front and behind you! |
Spread |
 |
A three way spread weapon. It is good for taking out enemies above and below. Has a decent firing rate too! |
Items
Besides the weapon pick ups there are also a couple of others you should be aware of,
Cherry |
 |
A cherry will restore one unit of valuable health to you. Make sure you pick them up as soon as you see them.
Cherries can also be found in pairs or in a large bunch, restoring 2 and 5 units of health respectively.
|
Keycards |
 |
Keycards and keys are used to access doors and other places in the game. Search the levels carefully to find
them. |
Points |
 |
These are points pods. They increase your score and come in various different flavours. |
Aqua Lung and Jetpack
Two special unique items appear in the game - An Aqua Lung and a Jetpack. These two items are both essential
for progressing further in missions and also for rescuing all the MIAs. Some missions will require you to
have one of these two items so you can play them properly.
The Aqua Lung provides the player with an unlimited supply of oxygen, so you can stay underwater forever. You
will then be able to reach MIAs and areas that you were previously unable to. There is no need to activate this
item, it is used automatically when you enter water. You will also notice that there is no longer an oxygen meter
at the top of the screen. Note that the Aqua Lung does not protect you from slime and lava.
The Jetpack allows the player to fly for a short time when it is activated. Press Space and then use the
directional buttons to fly in the direction you desire. There are two things to note about the Jetpack - Unlike enemies,
when flying Yam will suffer inertia... that is to say, if you are flying left and then push right you will have to
slow down before you can begin flying right. You can however fly one way and shoot another using this technique. The
second thing to note is that the Jetpack has an energy limit. Whilst it is activated it will lose power. The remaining
power is shown at the top of the screen (in place of oxygen). When the power runs out, the Jetpack will automatically
disengage. The Jetpack recharges whilst it is not in use. Note that the Jetpack cannot be reactivated if it has
less than 3 units of power.
These items will become available as your progress through the game. They are unique so only need to
be found once (so don't panic if you haven't found them, you can't miss them!).
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