Kabuso can teach Flynn the Binding Claw, Sukukaja and Media skills through its Demon Whisper. It is one of the demons needed to summon Ame no Uzume through special fusion. Kabuso can evolve into Senri upon reaching level 23.
Kabuso can be found in Kinshicho within the Kinshi Park area. If leveled up, it can grant access to the Bouncing Claw, Poison Claw and Dia skills. If leveled further, Kabuso will transform into Senri at level 21.
"A demon of Ishikawa prefecture that takes the form of a kitten and is said to often bewitch people. Because it has a wide-ended tail and lives in aquatic regions, it is thought to be a type of Kappa. It loves to fool people with illusions that cause them to wrestle with boulders and tree roots, or it may transform into a beautiful woman to seduce them. When a Kabuso tries to pull a prank, it will follow its victim while talking incessantly. Beware, should this happen to you."