RedEye 1031 has two modes: Story mode and Survival Mode. You'll start in a plane caught in a storm that will tear in half and plummet to the ground. Fight all the evil nasties in the plane as the plane is descending to its doom. If you can make it to the ground still alive, you'll move to the second part. In survival mode, you're stuck in the plane the entire time trying to see how long you last until you lose your health. Your weapon of choice is an oxygen mask, so you're going to have to hit these nasties a lot in order to get them to back off. See where you stand in plane crash survival in RedEye 1031.