https://parappatherapper.fandom.com/wiki/PaRappa_Rappa

PaRappa Rappa is a paper-thin rapping dog and the titular protagonist of the Parappa the Rapper franchise . His adventures usually lead to difficult situations which he counters with his catchphrase, "I gotta believe!" and pulls through.

PaRappa can be generally described as outgoing, optimistic, and cheerful. He can easily be demotivated, which puts him in an insecure state of mind. To resolve this, he believes in himself, and he feels better again.