This is a response to a resource request on our forums for a platypus.  The concept art is an 1920pxwide drawing of a platypus, which was then used as a basis for an extremely simplistic set of sprites consisting of a standing image, a three frame walk cycle, and a two frame jump cycle which are all 256 pixels wide. The xcf file includes a cut up version with body, head, tail and legs as seperate objects to allow for easy creation of additional frames, or for procedural animation.

The request thread for this item is here:
http://opengameart.org/forumtopic/i-need-a-background-for-platformer