Instructions
Flying
You automatically fly right while your opponent automatically flies left. The only aspect you control is your elevation & angle through when you decide to ascend or descend.
When you fly you must avoid running into the top of the screen or the ground. Hitting either will cause you to crash, awarding a point to your opponent.
Try to avoid flying on a similar flight path as your opponent. If you are close and can not easily evade them then make sure you are vertically above them then descend into them from above to score a point.