There is no fire button in this shooter. Your little green cannon shoots by itself, one laser pulse at a time, so the whole game comes down to where you stand. Line up under a ship to hit it, or slide under a falling boulder to blow it apart before it lands.
Andromeda Invaders unblocked runs as a single page with blocky canvas graphics and chord music made on the fly by your browser. Susam Pal wrote it as a small open-source project, and it loads in a blink even on slow school Wi-Fi.
How to play Andromeda Invaders
Press Space to start and move with the arrow keys or A and D. A new pulse leaves the cannon only after the last one hits something or exits the top of the screen. That means a wasted shot at empty sky leaves you briefly unable to defend yourself.
Every orange ship needs three hits, and its color darkens with each one. The hits are worth 10, then 20, then 30 points, while a boulder gives 1. Leave a damaged ship alone too long and it repairs itself one step at a time.
Your cannon also has three steps of health, shown by its color fading from bright green toward yellow. A third boulder hit ends the run. Stay clean for 100 points in a row and one step comes back. Watch the height of the fleet too, because it sinks over time, and a ship that reaches the ground is game over straight away.
Controls
| To… | Keyboard | Mouse | Touch |
|---|---|---|---|
| Move left or right | Left and Right arrows, or A and D | Hold the arrow buttons under the screen | Hold the arrow buttons under the screen |
| Start, pause or resume | Space or P | Click the play/pause button | Tap the play/pause button |
| End the run and open the info screen, then press again to restart | Enter or E | Click the return-arrow button | Tap the return-arrow button |
| Mute or unmute | M | Click the note button | Tap the note button |
| Full screen | F | — | — |
Tips
- Hunt the lowest ship. Whatever is closest to the ground is your real deadline, so take it down before chasing points elsewhere.
- Finish off wounded ships. The last hit pays the most, and walking away lets the ship heal.
- Stand still under a boulder only if you can hit it. Shooting it gives you a point and a fresh pulse, while dodging it costs time.
- Play safe after a hit. Each clean stretch of 100 points patches your cannon, so avoid risky moves until the color brightens again.
- Fewer ships means faster sinking. When a wave thins out, the survivors drop quicker, so stay alert near the end of each level.
Andromeda Invaders questions
Why is the cannon moving when I haven't touched anything?
That is the built-in demo. If you stay idle for about five seconds after loading or restarting, the computer takes over. Press Enter to end that run and press it again to restart, then move right away.
Can I play on a tablet or phone?
Yes, using the five buttons under the play area. Hold an arrow button to keep moving. It is playable, but a keyboard gives you finer control.
Do the levels ever end?
The game keeps going level after level, with more ships in early waves and faster ships and boulders as you climb. Your score just keeps adding up, so the aim is to beat your own best run.
