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Play Aliens (World set 1) (World edition · English) Online

Aliens (World set 1)

Swap the smart gun for a flamethrower or rockets as side-scrolling action alternates with other viewpoints.

Browser 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 Aliens (World set 1)

Quick start

Try low shots against small enemies and check which weapon you picked up. On the APC, remember that the second button fires rockets from a limited stock.

Controls

Move with the joystick. A fires while standing and B fires while crouching. On the APC, A uses the basic weapon and B fires an available rocket.

Aliens (World set 1) — About this game

Your smart gun can give way to a flamethrower or rockets as the route switches between side-scrolling sections and other viewpoints. Firing height matters against smaller creatures. APC sections also change the second button’s function, so check the situation before attacking.

Aliens (World set 1) Game manuals

Aliens_-_1990_-_Konami.pdf

Cheats

Infinite Credits

1 "开启", 0, 0x802, 0x99

Infinite Lives PL1

1 "开启", 0, 0x1901, 0xFF

Infinite Energy PL1

1 "开启", 0, 0x1902, 0x08

Character Invincibility PL1

1 "开启", 0, 0xA78, 0x39

Infinite Bombs PL1

1 "普通炸弹", 0, 0xA6B, 0x19
2 "超级炸弹", 0, 0xA6B, 0x29

Select Weapon PL1

1 "普通", 0, 0xA71, 0x00
2 "超级导弹", 0, 0xA71, 0x01
3 "火焰喷射器", 0, 0xA71, 0x02
4 "3向射击", 0, 0xA71, 0x03
5 "导弹", 0, 0xA71, 0x04
6 "机器人 (有错误)", 0, 0xA71, 0x05

Infinite Lives PL2

1 "开启", 0, 0x1941, 0x05

Infinite Energy PL2

1 "开启", 0, 0x1942, 0x08

Character Invincibility PL2

1 "开启", 0, 0xAB8, 0x39

Infinite Bombs PL2

1 "普通炸弹", 0, 0xAAB, 0x19
2 "超级炸弹", 0, 0xAAB, 0x29

Select Weapon PL2

1 "普通", 0, 0xAB1, 0x00
2 "超级导弹", 0, 0xAB1, 0x01
3 "火焰喷射器", 0, 0xAB1, 0x02
4 "3向射击", 0, 0xAB1, 0x03
5 "导弹", 0, 0xAB1, 0x04
6 "机器人 (有错误)", 0, 0xAB1, 0x05

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.

Aliens_-_1990_-_Konami.pdf

Editorial policy and sources Trust center EmulatorJS player help