Tank Battle

The game is the improvement for the tank game your have played in fc and 100 maps is contained.
What are different:
Object:
Destroy the crystal in the left and right,then destroy the hub in the center.
Fail:
When your tank or hub are hurt.
Enemy type:
The yellow randomly run,the red automaically find your tank,the black automatically find your hub.
Have fun!
Key words: tank nes fc childhood