May have to click flag twice. Crystals and automatic repairs heal your plane strength (can't go over 100.) Controls: Click to upgrade, and spawn. Arrow keys to move. Space to shoot. There is boss fight at the end. Enemies: Yellow ship-straight forward Red ship-patterns Blue ship-patterns and homing at spawn Purple ship-forever homing (Don't let them get behind you) Boss-spawns all ships (and nukes)
It might take awhile to get to your upgrades or the boss fight. And wait until the words have disappeared before clicking. Beware of spawning planes.
