Six O Clock High is an action game where you get in the cockpit of a WWII fighter jet and face off against other craft. In each level you have to try to defeat a set number of rival planes, which obviously will increase bit by bit.
Every time you manage to level up you can buy an upgrade for your plane. These potential upgrades range from bolstering your plane's defenses or increasing its speed to hiring a mechanic to help you repair damages in full flight.
The controls in Six O Clock High might seem a bit difficult at first, but in fact they're quite intuitive. Just lightly tap the screen in the direction you want to turn the plane. You fire automatically whenever an enemy plane comes within your range of action.
Six O Clock High is a highly entertaining action game with a fun gameplay and quite good graphics. And there are also more than a dozen upgrades to unlock for your plane.