This is a character with a rig. When you move the "dad_master" object, the whole character and the bike will move with it. The bike and character are composed of simple 2d planes with PNG textures applied. Everything works with an armature and constraints on bones. Play around with it!
Here is a short film showing the rig in motion: http://www.youtube.com/watch?v=rdQMHVhMTuI
And you can follow the discussion on Blender Artists here: http://www.blenderartists.org/forum/showthread.php?300796-Live-Action-HAPPY-WHEELS-Irresponsible-Dad-in-Real-Life