当机器人统治这个世界时，人类处于危险的地位。
The robotic tanks were sent out to from time to time to destroy human bases. Your mission is to protect the bases from the vicious tanks.

Press arrow keys or number 2-4-6-8 keys to move.
Press Fire or number 5 key to fire.

Destroy all tanks in area to move on to help the next bases.
Some tanks will drop items and upgrades when they are destroyed.
Keep your eyes around the base while you are hunting for the enimies.
They might come from another direction, and it's too late to protect the people.
