Kiba is part of the Inuzuka clan which specializes in beast type of attacks and pairing up with other animals to successfully complete their missions. Kiba is a very strong character but at the same time still is a soft character who cares for his friends.
Kiba fights with his partner Akamaru the faithful dog who willingly abides by the commands Kiba sets forth for him, the 2 are a devastating duo who cause considerable amounts of damage to the enemies. When we first see them fight as 1 is when they are pit up against Naruto in the pre-fights for the chuunin exam, their strength together was enough to cause considerable damage to Naruto, but their weakness is their heightened sense of smell, which enhances all smells 1000 times that of its original smell.
Personality wise Kiba seems to be very caring for his comrades and at the same time can be a jerk, this makes Kiba become more of a variable character of the series, not so much has really been released about him thus far, though in time there will be a more in tuned and more integrated part of him in the series.