Big Billy app for iPhone and iPad

Big Billy is a shooting game. The game is perfect for entertainment. It is easy to play. The app consists of many cards. You must purchase a version of the upgrade to play the game to the end. The version upgrade costs 3.99 euros.
Its a treasure hunt game. Billy has to find a fortune by the end of the game. The action of the game takes place in top view.
There are 3 enemies: soldier, dog and rat. The rat is a harmless character. The dog must be avoided because it bites deadly. Soldiers shoot a gun when Billy is within sight.
Below is the fire button. And by pressing the button you can move, either forward or backward or right and left.