In Ninja City, it is tradition for ninjas-in-training to perform a demonstration of their abilities before their sensei in order to receive their status of ninja. The specifications and requirements of the demonstration are determined by the student's sensei. This demonstration is known as The Test.

Shown at right is the most famous Test, in which the Grand Master of Ninja City instructed his student Davey Wilson to defeat the warrior Cobra-Kai in battle. The duel has come to be known as the Battle of the Two Ninjas.