The aliens have invaded earth and you as a general of the mercenary pilots must fight them off. Command a fleet of fighter planes and utilize the special attacks to repel the alien invaders.
Place the mouse cursor at the edge of the screen to scroll, or press Left/Right keys.
*Important* : Mouse over to collect money.
– Fixed crash in survival mode at wave 46.
– Fixed wrong spelling for Ethiopia.
– Mentioned how to collect money in the tutorial.
– Fixed a bug where you can click the unit and skill buttons while they’re still cooling down, after opening the pause menu.
– Turned off the focus rectangle.
There are lots of interesting tips here (check the comments sections) :