If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Sudden influx of a large town aliens, almost the entire village would be destroyed them, the people living here will not allow such a thing, they take up their arms, struggling against the aliens.
Arrow Keys - Move.
Spacebar - Transform (when blue bar is full).
Q,W,E,A,S,D - Attack.