To describe SquirrellyJay is something I obviously have not done, so let me try and attempt a possibly retconnable description so that in the future will have SJ featured in a lot more fanart.

SquirrellyJay is basically a heroic toon chosen by the makers of entertainment to well... entertain.

Comedic gags are his specialty, and everytime he makes someone laugh, he earns entertainment points which he can accumulate to learn better and funnier gags.

He does have weaknesses however, one is being easily fooled, another is that when he is physically damaged beyond his breaking point, he will poof into a drawing of himself which only a touch of magic ink will fix.

He also likes to sing and dance at certain moments, play video games, draw and wear costumes and disguises.