Screenshots1 / 2
Moon Alien Part 2
月球异星人2
Moon Alien Part 2 is an action arcade game released by Namco and Nichibutsu in 1980. Players control a character defending against waves of descending aliens, using directional controls and fire buttons to shoot projectiles and eliminate threats. The gameplay features multiple waves of increasing difficulty, with aliens attacking from the top of the screen in formation patterns. Players must avoid enemy fire while positioning strategically to eliminate all invaders before advancing to the next wave. The game uses simple but responsive controls and a straightforward level structure that repeats with escalating challenge.
- Developer
- Namco / Nichibutsu
- Released
- 1980
- Platform
- Arcade
- Genre
- Action
- Rating
- 4.7 / 5 (3.8K)
- Last updated
Moon Alien Part 2 Controls — Arcade Keyboard Keys
Default keyboard bindings for Moon Alien Part 2 on our in-browser Arcade emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | Joystick Up | Move up |
| ↓ | Joystick Down | Move down |
| ← | Joystick Left | Move left |
| → | Joystick Right | Move right |
| X | Button 1 | Primary action (jump / confirm) |
| Z | Button 2 | Secondary action (attack / cancel) |
| S | Button 3 | Tertiary action |
| A | Button 4 | Quaternary action |
| Q | Button 5 | Fifth button |
| W | Button 6 | Sixth button |
| 5 | Insert Coin | Insert coin |
| 1 | 1P Start | Start / Pause |
Coin and Start are convention "Insert Coin: 5" and "1P Start: 1". Some arcade boards expect specific button mappings — check the in-game prompts on coin-up.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Moon Alien Part 2 Longplay & Gameplay Videos
Watch a full playthrough of Moon Alien Part 2 on Arcade before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Moon Alien Part 2" Arcade longplay 1980
External references
Frequently Asked Questions
When was Moon Alien Part 2 released?
Moon Alien Part 2 was released in 1980 for the Arcade.
Who developed Moon Alien Part 2?
Moon Alien Part 2 was developed by Namco / Nichibutsu, available to play in your browser on RetroGameSpace.
What type of game is Moon Alien Part 2?
Moon Alien Part 2 is a Action game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play Moon Alien Part 2 for free?
Open this page and click "Play Now" — Moon Alien Part 2 runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Moon Alien Part 2 in the browser?
No. Moon Alien Part 2 streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in Moon Alien Part 2?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Arcade cartridge supported.
Does Moon Alien Part 2 work on mobile devices?
Yes — the Arcade emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Moon Alien Part 2 this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Moon Alien Part 2. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
