How do I fire my weapon?

Once you have lined up your shot simply tap on the bullet icon located in the bottom-left corner of the screen. This will fire your 25mm Gun.

If you have purchased the other weapons from the Weapons menu, you will see the buttons for these just to the right of the bullet icon. You can tap these in the same way to fire those weapons.

Note that you can customize the control layout in the “Settings” menu which will allow you to move the buttons wherever is suitable for you.