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Play SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) (English) Online

SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028)

Play SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) online. Move the satellite separately from its trackball aim and clear offensive waves to avoid a defensive warhead phase.

Browser play

How to play

Arcade — EmulatorJS controls

Default Player 1 keyboard mapping. Change keys in Controller Settings.

Console button	Keyboard
↑ / ↓ / ← / →	↑ / ↓ / ← / →
RetroPad A / B / X / Y	Z / X / A / S
L / R	Q / E
Insert coin	V
START	Enter

Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.

How to Play SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028)

Quick start

Move the satellite with the joystick.
Place the crosshair with the trackball.
Fire at the marked threat while evading.
Clear the offensive wave or defend against the escaped warheads.

Controls

The joystick moves the satellite. The trackball moves the targeting crosshair independently. The firing action sends the satellite’s weapon toward that crosshair.

SDI - Strategic Defense Initiative (System 16B, FD1089A 317-0028) — About this game

SDI lets the satellite dodge independently from the crosshair that directs its weapons. The joystick moves the satellite while a trackball positions that aim, so maintaining a shot on a target does not require remaining on its collision course. The offensive section tries to clear every enemy; a complete clearance skips directly ahead, while escaped enemies create a defensive task protecting the homeland from warheads. Learn a short evasive movement while keeping the crosshair on one threat, then finish stragglers before they turn the next section into an incoming-missile defence.

Cheats

Infinite Credits

1 "开启", 0, 0xFFC60D, 0x09

Infinite harm

1 "开启", 0, 0xFFC63A, 0x00

Select Starting Stage

1 "关卡 1", 0, 0xFFC40B, 0x00
2 "关卡 2", 0, 0xFFC40B, 0x02
3 "关卡 3", 0, 0xFFC40B, 0x04
4 "关卡 4", 0, 0xFFC40B, 0x06
5 "关卡 5", 0, 0xFFC40B, 0x08
6 "关卡 6", 0, 0xFFC40B, 0x0A
7 "关卡 7", 0, 0xFFC40B, 0x0C
8 "关卡 8", 0, 0xFFC40B, 0x0E
9 "关卡 9", 0, 0xFFC40B, 0x10
10 "关卡 10", 0, 0xFFC40B, 0x12
11 "关卡 11", 0, 0xFFC40B, 0x14

Flickr mode

1 "开启", 0, 0xFFC83A, 0xFF

Always perfect destruction of missiles

1 "开启", 0, 0xFFC646, 0x01, 0, 0xFFC647, 0x01, 0, 0xFFC648, 0x01, 0, 0xFFC649, 0x01

Always perfect to destroy a satellite

1 "开启", 0, 0xFFC64A, 0x01, 0, 0xFFC64B, 0x01, 0, 0xFFC64C, 0x01, 0, 0xFFC64D, 0x01

Always perfect to destroy the enemy

1 "开启", 0, 0xFFC64E, 0x01, 0, 0xFFC64F, 0x01, 0, 0xFFC650, 0x01, 0, 0xFFC651, 0x01

Always perfectly destroyed the base

1 "开启", 0, 0xFFC652, 0x01, 0, 0xFFC653, 0x01, 0, 0xFFC654, 0x01, 0, 0xFFC655, 0x01

Infinite Lives PL1

1 "开启", 0, 0xFFC60E, 0x05

Character Invincibility PL1

1 "开启", 0, 0xFFDBC9, 0x08

there's always firepower upgrades PL1

1 "开启", 0, 0xFFC658, 0x01

Always triple the firepower range PL1

1 "开启", 0, 0xFFC63E, 0x02

Select Speed PL1

1 "1", 0, 0xFFC65B, 0x00
2 "2", 0, 0xFFC65B, 0x0A
3 "3", 0, 0xFFC65B, 0x14
4 "4", 0, 0xFFC65B, 0x1E
5 "5", 0, 0xFFC65B, 0x28

Rapid Attack PL1

1 "开启", 0, 0xFFC611, 0x01

Infinite Lives PL2

1 "开启", 0, 0xFFC70E, 0x05

Character Invincibility PL2

1 "开启", 0, 0xFFDC49, 0x08

there's always an upgrade in firing power PL2

1 "开启", 0, 0xFFC758, 0x01

Always triple the firepower range PL2

1 "开启", 0, 0xFFC73E, 0x02

Select Speed PL2

1 "1", 0, 0xFFC75B, 0x00
2 "2", 0, 0xFFC75B, 0x0A
3 "3", 0, 0xFFC75B, 0x14
4 "4", 0, 0xFFC75B, 0x1E
5 "5", 0, 0xFFC75B, 0x28

Rapid Attack PL2

1 "开启", 0, 0xFFC615, 0x01

Player verification and sources

Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.

Browser test and catalogue publication date: October 20, 2026
Browsers and devices: PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
Player engine and core: EmulatorJS 4.3.0-pre · arcade
Tested by: rwEmulator

Sources and editorial basis

rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.

Editorial policy and sources Trust center EmulatorJS player help