"Today, we're going to talk about timers, generating obstacles and recycling sprites (to cut down on memory usage)."

"We should now, by the end of this lesson, have a semi-recognizable version of flappy bird up and running."
"Today, we're going to talk about timers, generating obstacles and recycling sprites (to cut down on memory usage)."

"We should now, by the end of this lesson, have a semi-recognizable version of flappy bird up and running."