This content was released on Feb 17 2014. The official support period is 6-months from this date.
Learn how to spawn obstacles periodically over time in this video tutorial series on how to make a game like Flappy Bird.
This is a companion discussion topic for the original entry at https://www.kodeco.com/2515-video-tutorial-how-to-make-a-game-like-flappy-bird-part-2-spawning-obstacles