Nobita gets jealous when Gian, Suneo and Yasuo show off their cool toy guns, and wants one himself. Doraemon instead gives him a better alternative, a gadget called the Air Pistol. The gadget allows you to shoot blanks (i.e. simply air) from your finger. Nobita decides to use it on all his friends, and they end up having a competition as to see who can last the longest without getting shot.
