Someone posted this video for lesson 4, but it's perfect for this lesson as well. I show the kids the first few minutes of it, and later ask them what they remember. I'm getting them to say "Watch out for the ___"
http://www.youtube.com/watch?v=_sL403o7xkMAlso, here's a car race game that someone made and I modified for this lesson.
To play, I split the kids into 2 teams, red car and blue car teams. To play, I ask a kid from each team to come up to the screen. They play rock-paper-scissors to determine who will choose a number. When the number is chosen, the student who says "Watch out for the ____" the quickest gets to advance in the car race. When I played this before, they went nuts for it. I figure I'd bring it back! Btw, all pics are from the Mario game I previously posted.