Ninja Saga Pet: Inokuchi

You can buy and obtain these pets on Pet Shop - and it only costs you Gold.
Credits for cobaltblue, jinchuriki of Ninja Saga Forums.

Skills
1st skill - level 1: Normal Attack
2nd skill - level 10: Spin Strike
3rd skill - level 20: Earth Strangle (Stun ~Disables target from making any movement - 1 turns)
4th skill - level 30: Rock Shade : Form a kekkai for master so that master can recover HP when attack ( Amounth : 15 % of the attack damage ) ( 2 turns ) 
5th Skill: Secret Jutsu; Rock Death Spear - (Gives bleeding effect to the opponent as much as 10% for 2 turn)


General Requirements for Unlocking Pet Skills
1st skill: It's already there when you obtain this pet.
2nd skill: 200,000 gold
3rd skill: 300,000 gold
4th skill: 500,000 gold + magatamas: 6 (level 1)
5th skill: 1,000,000 gold + magatamas: 6 (level 1), 4 (level 2), 2 (level 3)
6th skill: 1,500,000 gold + magatamas: 10 (level 1), 8 (level 2), 6 (level 3), 4 (level 4), 2 (level 5)