This action/arcade shooter set in World War II has a large crew operating the tail gun turret. You can aim with your phone’s gyroscope or touchscreen, and when you’re ready to fire, press either of the two red buttons on the screen. The tail gunner’s role was critical in operating B-17, B-24, B-25, and B-29.

Guns! Cause untold pain to your brother or sister. As the waves of Axis fighters increase, you must defend your bomber with cannon fire of caliber equal to or greater than 50 calibers. Planes! You would have to defend against Me-109s, FW-190s, and Bf-110s in addition to anything else the Axis could throw at you. Lives! You will only receive five of them after five enemy soldiers have successfully breached your defenses. There is no way that you and your crew will be successful at this point. Ammo! Put another way. There is an infinite supply, so no need to worry about running out. Check the temperature of your weapons regularly; if they get too hot, your opponent will not wait for them to cool before moving in for the kill if they are in use.

Because of the time required to render the images, this graphically demanding game will quickly deplete your battery life. It is strongly advised that you do not play the game if your phone is dead or you are waiting to hear from the medical facility that your new kidney has arrived. It is strongly advised that you do not play the game if either of these conditions applies to you. If your gyroscope-based aim drifts off center, or if you want to change your phone’s orientation, simply point your screen in the direction you want to face and then tap the Align button in the lower-left corner your device. The gyroscope can then be readjusted to its proper position.