Operate the turret to move the battery, aim at it and fire a bullet to defeat the enemy.

The aim can be moved by dragging the screen with the mouse.
The camera can be moved with wasd or →←↑↓ keys.

There are stages that become clear over time and stages that become clear if you destroy all targets.

There is a radar in the upper right of the play screen.

You can change the weapon by clicking the weapon icon at the bottom of the play screen.

You can use the bullets or reload by clicking on the equipped weapon icon.

You can open the pause screen by clicking the upper left frame while playing.
Open the pose screen and click the gear icon to open the setting screen.
You can change the speed of the camera and the display of the enemy's health bar.

You can get scraps by defeating the enemy.
From the shop, you can use iron scraps to strengthen your weapons.

It is also released on Android.