For my son's 5th birthday, the theme was Batman. We played several games. The games were as follows: 1)Pin the Bat on Riddler-I drew a poster size portrait of the Riddler, laminated it, and cut out black bats. Anyone who landed a bat on the Riddler won.  2)Bat tag-every child had several bats taped to them.The goal was to take the opponants bats off from them.The child with the most bats in one minute won. 3)Musical Bats-this game is just like musical chairs.A bat was taped to the bottom of the chair (without the children looking).Batman theme music was played.When the music stopped and children sat in the chairs, the child sitting on the Bat chair won. Of course, or finale before eating was the Pinata.