Set the timer, pick a face, and go racing to build a face.
Match the features on 1 of his 12 face cards.
Be quick - if the timer runs out before you run out of building Mr. Bob's face, it will pulse and send flying pieces!.
EXTRA CHALLENGE NEEDED - After you've worked and mastered building all the faces, try to wind the tap timer part of the track, so you have less time to put Mr. Bob's face together.