You are being attacked from enemy airplanes of World War 2. Reload your weapons and shoot down all of them! Make your enemies tremble at your double barrel machine gun and autonomous precision-guided missiles! Stunning explosion effect,passinate bacground music,addictive while simple.FEATURES: 1. Free truely: No In App Purchase, No advertisement!2. Augumented-Reality(AR) mode: Choose battlefield at your wish!(what your camera sees is what your game background is)3. Gyroscope: your device's advanced gyroscope makes aiming quite easily. Note: iphone4s/iPad2 or above are recommended for AR mode.