First time Mickey Mouse's dog is called Pluto.
This is the only time Pluto speaks on screen. He says, "Kiss me."
This cartoon plays (albeit with no sound) in the Main Street Cinema at Disneyland.
Pluto sniffing near the Camera in "The Moose Hunt" from 1931, is a reused animation from the 1930 Mickey Mouse Cartoon "The Chain Gang".
"The Moose Hunt" from 1931 is the first of six Mickey Mouse Cartoons, in which he is hunting.