In this game, will be calculated score by the number of enemies defeated damage situation and the player.
If it is tough to deal with the enemy, it is possible to get help by calling a friend.
However, because the damage of the ally also affect the score, please judge according to the situation.

The enemy is the two types of infantry and artillery.
Especially artillery attacks, gate is will be severely damaged.
Let's immediately addressed If you see.

In addition, players that can only call of artillery operations as allies.
Position of the cannon because it does not reach the attack will be able to concentrate on the intercept.
While suppressing the damage, to defeat as many enemies, please aim a higher score.

[Victory conditions]
Annihilation of the enemy

[Defeat conditions]
A certain number of enemy invasion

Method of operation
[Cannon]
Jump to: Press up and down either the length of the cannon in the left side of the screen
Elevation angle adjustment: the right side of the screen a slide
Fire: screen, tap the right-hand side

[Ally]
Call: screen tap the bottom left of the button

※ In order to play comfortably, it is recommended the same specs and Nexus9 released in 2015.