| Console: | Nintendo Entertainment System (NES) |
| TV Standard: | Region Not Set |
| Developer(s): | SNK |
| Publisher(s): | SNK |
| Release Date: | 1987-10-01 |
| Players: | 1 |
| Co-op: | No |
| ESRB: | Not Rated |
| Type: | Shooter |
Out beyond, in the galaxy of Tetrenova, a war has been fought that has exhausted resources and even worlds. The survivors band together and look for a new place to rebuild. They choose a seemingly undeveloped planet, Earth.
Using your defense ship 'Syd,' you must destroy the invading forces and ground targets with bombs. Obtain power-ups to gain energy for ship upgrades that allow you to transform to a more powerful machine. The game itself is a vertical shooter, moving continuously up towards the top of the screen.
Game Player of Alpha Mission on Nintendo Entertainment System (NES)Generally, you can review the controls (keyboard) setting during each game in the screen before it starts. Use the arrow keys and “Z”, “X”, “A”, “S”, “Q”, “E” buttons to play, or customize yourself with your gamepad or keyboard.
| Keyboard | Controls |
| ← → ↑ ↓ | Directions for LEFT, RIGHT, UP, DOWN |
| Enter ↵ | START |
| Shift | SELECT |
| Z | A |
| X | B |
| A | X |
| S | Y |
| Q | L |
| E | R |
