Gamariki

Gamariki is a toad from Mount Myouboku.

Anime debut: Naruto Shippuuden Episode #91
Movie debut: Road to Ninja: Naruto the Movie

Background:
After setting off to train with Jiraiya, Naruto was first trained to recognise and disperse genjutsu. In order to do this, Jiraiya summoned Gamariki who used his Genjutsu Kiss on him, sending him into a world of illusions. In attempting to release the genjutsu, Naruto unintentionally ended up releasing chakra much in the same manner as his Rasengan, knocking Gamariki into a canal and knocking him out. It was revealed that this was the reason the two dislike each other.

Personality:
Gamariki is predominantly very flamboyant in his actions, often making extensive use of bodily gestures to bring his feelings across. In the Japanese version, he also has a tendency to refer to persons with the suffix "-chan" (ちゃん) in a manner that would be deemed cute. On the other hand when he became serious his voice that was normally high-pitched would take on a deep, serious tone which is assumed to be his normal voice. Despite this very flamboyant nature, he could be very serious when situations called for it.

Abilities:
Gamariki is quite the capable toad, being able to restrict or knockout an opponent with his Whip of Love. He can utilise the Water Release nature transformation to use techniques such as the Water Release: Water Gun, which he could use in conjunction with his summoner to produce a more devastating attack. He has also shown to be proficient in genjutsu, being able to catch targets with them by kissing them, and sending them into a world of hallucinations.

(Source Narutopedia)