Click on the screen to make Batty flap.
If you click near the right or left edge of screen Batty will fly farther.
If you click closer to her, she will fly higher.
To push Batty directly up click right under her.

Tip: Don’t dwell on a single point, to fly like ace click in different places

You can press “Space” button to pause the game.

If you play on laptop it’s highly recommended to use a mouse instead of touchpad ;)