wowGame is funny flash free online game.

＜What You Need＞
Mouse: to shoot
Left and Right Arrow or AD Keys: to move
1 to 3 Keys: to use weapons
Down Arrow or S Key: to use your shield
Up Arrow or W Key: to change your power
Spacebar: to store power

＜How to Play＞
Defeat lots of enemies!

1. Click New Game, Start Game, and then Begin Invasion.
2. Shoot the enemies.
3. Using your shield will deplete your power. Use the W or Up Arrow key to change you power into energy. Use the spacebar to take energy from defeated enemies.
4. If you run out of energy, it's game over.

☆ Tank,Robot ☆