I feel ya.
Ninjutsu is the use of doing anything that normally the user would be not capable of doing. The affects of ninjutsu are real unlike it's counterpart genjutsu. Most of the time, ninjutsu requires chakra and hand seals, but there are some that require none. There are five basic elemental ninjutsu: Water, Earth, Lightning, Wind, and Fire. There are also advanced ninjutsu that combine some of the said elements. There are some ninjutsu that can be used with Taijutsu to create a nin-taijutsu, much like the 3rd or 4th Raikage.