The academy is where would-be ninja start; they are not actually considered ninja until they graduate.
Academy students take formal and practical tests of all sorts and are taught basic ninja skills, such as martial arts, techniques, physical fitness and the way of the ninja.
Basic weapon usage, such as kunai and shuriken, are commonly taught. Elementary ninja techniques, such as transformation jutsu and clone jutsu, though they vary from village to village, are also taught.
You main objective is to defeat mighty Zabuza. Use skills and weapons to deal evil tyrany.
