Alpha Attack, which is a skill free game on www.flash-game.net. Alpha region is coming to attack you city, you have to protect it and fight for your city. The government bought a lot of arms to fighting with them, but it still not working. After those experiences, they found out the only way to attack them which is: There is an alpha on each bomb, you just have to type the alpha on your keyboard, then they will disappear. Best of luck, you are the only hope for your home.