S.D.I.

SEGA (R)



SDI

NOW THE ODDS ARE EVEN





PLAYER'S GUIDE



INTRODUCTION

------------

SDI � Strategy and Arcade action at its best!



This classic Sega arcade hit, in the true Ronald Reagan Strategic Defense

Initiative style, tests your skills in both offensive and defensive

warfare to the limit. It's all out nuclear war and your mission is to

defend your country from enemy nuclear space weapons and save the planet

from imminent catastrophe.



SPECIAL FEATURES

----------------

� Single or multi-player modes

� Offensive and defensive levels at each stage

� 1040 loads in one go!

� Seven main tunes

� Over 300 different sprites � animated deadly enemies which will collide

with one another.



LOADING INSTRUCTIONS

--------------------

Set-up your Computer System as detailed in the instruction booklets that

accompany your Computer, and connect to your TV or monitor. Ensure that any

cartridges or peripherals (such as disk drives, cassette players, printers,

etc.) are disconnected from your computer. Failure to do so may cause

loading difficulties. (If your computer has a built in disk or cassette

drive you will not be able to disconnect the built-in item, but ensure that

any other peripherals are disconnected.)



COMMODORE 64/128 DISK

---------------------

1. Turn on your disk drive and computer.

2. If you are using a Commodore 128 type the following:



6064 then press RETURN Y then press RETURN.



3. Insert the disk in your disk drive, label side up.

4. Plug a joystick into port 2.

5. Type LOAD"*",8,1, and press RETURN. After a short while, the title

screen will appear.



COMMODORE 64/128 CASSETTE

-------------------------



1. Turn on your computer. If your are using a Commodore 128 type the

following:



6064 then press RETURN Y then press RETURN.



2. Insert the cassette into your datacassette, side A facing upwards, and

ensure it is fully rewound.

3. Plug a joystick into port 2.

4. Hold down the SHIFT key, then press the key marked RUN/STOP.



SPECTRUM 48K/128K/+ CASSETTE

----------------------------

1. If you are using a 128K/+ machine then select 48K mode.

2. Type LOAD"" and then press ENTER.



ATARI ST

--------

1. Insert disk 1 and switch on monitor and computer.

2. After a short while the loading screen will be displayed and the music

will play. Afterthe music stops the main game will load automatically.

(Pressing SPACE while the music plays will skip the rest of the music.)

You will be prompted to insert disk 2.

3. If you are using a 520 ST the levels will be loaded from disk on

completion of each level. If using a 1040 ST all twelve levels will load

into memory.



LOADING DIFFICULTIES

--------------------

We are always seeking to improve the quality of our product range, and have

developed high standards of quality control to bring you this product.

Therefore, in the event that you experience any difficulties whilst

loading, it is unlikely to be a fault with the product itself. We suggest

that you switch OFF your computer and repeat the loading instructions

carefully, checking that you are using the correct set of instructions for

your computer and software. If you still have problems, consult the User

handbook that accompanied your computer or consult your software dealer for

advice. In the case of continued difficulty, and you have checked all of

your hardware for possible faults, may we suggest that you contact your

Customer Advice Department in writing for assistance:



Activision Customer Advice (S.D.I.)

Blake House

Manor Farm Estate

Manor Farm Road

Reading

BERKSHIRE



Your letter should clearly state the following:

� your name and address

� a daytime telephone number

� the name of the product you are having difficulty with

� whether it is on cassette or diskette

� the computer system you are using and any peripherals, Joysticks etc you

use with the software.



GAMEPLAY AND CONTROLS

---------------------

COMMODORE 64/128

----------------

Control Options



From the title screen press SPACE to return to option screen. The keyboard

controls are as follows:



Q Up

A Down

I Left

O Right

P Fire

SPACE � TOGGLE MOVEMENT (Satellite/cursor).

F1 One player game

F2 Two player game

Run/Stop Pause

Q Quit (when paused)



Joystick Control



Use the joystick, without pressing the fire button, to move both the cursor

and satellite. Use the joystick, when pressing the fire button, to move the

cursor only and fire the lasers.



Game Details



Press BACKSPACE Pause On/Off

ESC Restart game

F10 Music On/Off



The screen displays both players and lives remaining � in a two-player game

the relevant "1-Up" or "2-Up" will flash to show which player's turn.



The damage bar at the bottom of the screen relates to damage to your space

station. If the bar fills up completely the game will end.



There are 12 levels in S.D.I. during which you will face waves of enemy and

enemy base missiles, satellites and fighters. If at any time during an

offensive half you allow any enemy craft to penetrate your defences you

must play a defensive half. At the end of each offensive half you will

receive a report on the results of that half: a perfect score will be

rewarded with 20,000 bonus points (and a dancing duck!).



During play you will also come across satellites bearing bonus pods:



BLUE � Extra speed when moving Satellite.

RED � Multiple cursors (up to 3).

YELLOW � Extra fire power (bigger explosions)



To collect the bonus pods shoot at them to release them, then steer your

satelite into the pod before it leaves the screen.



Disk B should be left in the disk drive in order to save the high score

table.



SPECTRUM 48K/128K/+

-------------------

Control Options



Press 0 To start game.

1 To toggle between 1 & 2 Player game.

2 Define controls.



The keyboard controls are as follows:



J UP

N Down

Z Left

X Right

ENTER Fire



Game Controls



The player controls both satellite and cursor; pressing fire will aim a

laser from the satellite to the current cursor position.



When using a joystick or keyboard both satellite and cursor respond to

normal joystick movement. If the fire button is pressed the cursor only

will move and lasers will fire. SDI may also be played as a team game, one

player moving the satellite using keyboard, and a second player controlling

the cursor and laser with a joystick.



An additional feature on the Spectrum version is that pressing the SPACE

bar will toggle between the above controls and the alternative version, in

which both satellite and cursor will move whether or not the fire button is

pressed.



Game Details



Press P Pause on/off

Q Restart game



The screen displays both players scores and lives remaining � in a two-

player game the relevant "I-UP" or "2-Up" will be highlighted to show which

player's turn.



The damage bar at the bottom of the screen relates to damage to your space

station. If the bar fills up completely the game will end.



There are 12 levels in SDI during which you will face waves of enemy and

enemy base missiles, satellites and fighters. If at anytime during an

offensive half you allow any enemy craft to penetrate your defences you

must play a defensive half. At the end of each half you will receive a

report on the results of that half: a perfect score will be rewarded with

20,000 bonus points (and a dancing duck!).



During play you will also come across satellites bearing bonus pods. Shoot

at the satellites to release the pods, then dock with the pod to gain extra

cursors.



ATARI ST

--------

Control Options



From the title screen press SPACE to return to option screen.



Press F1 1 Player game (or 2 player team game)

F2 2 Player game

F3 Redefine keys



Mouse Controls



Moving the mouse normally will move the cursor. Holding down the left hand

mouse button will enable movement of the satellite.



Press right hand button to fire lasers to current cursor position.



Mouse and Joystick Controls



Use the joystick in Port 1 to move the satellite Mouse in Port 0 will move

cursor � right hand mouse button to fire lasers.



Game Details



Press BACKSPACE Pause On/Off

ESC Restart game

F10 Music On/Off



The screen displays both players scores and lives remaining � in a two-

player game the relevant "1-Up" or "2-Up" will flash to show which player's

turn.



The damage bar at the bottom of the screen relates to damage to your space

station. If the bar fills up completely the game will end.



There are 12 levels in S.D.I. during which you will face waves of enemy and

enemy base missiles, satellites and fighters. If at any time during an

offensive half you allow any enemy craft to penetrate your defences you

most play a defensive half. At the end of each offensive half you will

receive a report on the results of that half: a perfect score will be

rewarded with 20,000 bonus points (and a dancing duck!).



During play you will also come across satellites bearing bonus pods:



BLUE � Extra speed when moving Satellite.

RED � Multiple cursors (up to 3).

YELLOW � Extra fire power (bigger explosions)



To collect the bonus pods shoot at them to release them, then steer your

satelite into the pod before it leaves the screen.



Disk B should be left in the disk drive in order to save the high score

table.