New Assist Trophy - Andross
Smash 101 - Four Special Move Types
Andross is an Assist Trophy, and he goes to the back of the stage, tries to inhale the characters, and then shoots out polygonal panels at everyone. The Four Special Move Types detailed how to use special moves and the types of them, using Metaknight as a model.
Source for Andross (More Pictures and Details Here)
Source for Four Special Move Types (More Pictures and Details Here)