You are the hero!
Take a photo of anything you want, and that will be the character you'll be flying in the game. You can take a selfie, a group selfie, a basketball, anything you want to put inside the game.
Fly the spaceship up to the sky, then tap the camera at the bottom of the screen to take a photo of anything you want, then immediately after you adjust your photo, the spaceship will be replaced by the photo you just took. But you need to tap very quickly to get your new photo flying up again. Avoid running into the poles/pipes by tapping the screen to raise your rocket/photo.
We had a little fun with the camera feature by taking a photo of myself, a pencil, a soccer ball, and a water bottle.