Halo 3 ODST has quickly become a favorite game of mine for various reasons. The Superintendent, New Mombasa's central computer AI in charge of various city services and utilities, helps you out through the game and I thought his design was really clever. Very simple, but surprisingly expressive by just changing the shape of the eyes.

http://halo.wikia.com/wiki/Superintendent

So a little while ago the idea got in my head of making my own version based off my dragon self. Change the circle to a triangle for a more dragony head shape, make it blue, and add little bits for floof and nosehorn and you have a Doran AI with various moods. Normalface, squeeface!, tiredface, ANGRYFACE, sadface, and confusedface.

Done in MS Paint, whee!