[liran218]

1. Known game facts:
   • The aliens will move from one side to another, and when reaching the edge they'll descend and go the other way around.
   • When reaching bunkers height, the aliens will start erasing it when touching.
   • The aliens will start a little bit lower every wave.
   • The aliens will move faster for each alien you kill.
   • When an alien reaches your height it's game over for you.
   • Although it seems that way at first, the aliens DO NOT come in peace.
   • You cannot shoot a new shot before the last one disappeared (it disappears when killing an alien/spaceship also).
   • You can damage your own bunkers when shooting at them.
   • You get new bunkers every wave.
2. Some less known game facts:
   • The aliens at the bottom two lines worth 10 points each. The aliens at the next two lines worth 20 points each. The aliens that are on the top line worth 30 points each.
   • The spaceship that occasionally appear can be worth 50, 100, 150 or 300 points.
   • You still need to avoid the last alien shots after killing it.
   • You get one extra life when reaching 1000 points. That's the last extra life you'll get in this game.
   • At level five you don't have any bunkers at all (the bottom lined aliens start at bunkers height).
3. Keys facts:
   • The movement is as follow: move left with the Ctrl key and move right with the alt key. Shoot with the right-shift key.
   • Start a new game with the space bar (only when the flickering "Game Over" appears).
   • You cannot pause the game.
   • To quit, press the esc key.
4. This fact you surely do not know: my highscore is 4350 reaching wave 4, although I did get to wave 5 but scored only 4300 points in that game (due to different spaceships I shot during the two games).

Enjoy the game!