A skeleton dog with skeleton fleas.

Much less racism than expected!

Right when I was thinking that maybe becoming one of them wouldn't be so bad, it gets to the process of doing that.

Ub's entire career was basically a morbid exploration of the psychopomp journey mythos. He's even been worked into the "official" backstory of the Haunted Mansion, which was built by a one "Ubbe van der Iwerks".

So the frog is basically Mickey, but without the ears or nose.