Stuff to teach self

Basic modelling, rigging and game engine in Blender from BlenderCookie

Alien Modelling:
http://www.blendercookie.com/2009/12/01/box-modeling-an-alien-character-in-blender-2-5-alpha-0/

Rigging (alien):
http://www.blendercookie.com/2010/01/04/rigging-an-alien/

http://www.blendercookie.com/2009/11/16/creating-a-face-rig/

Hand:
http://www.blendercookie.com/2010/02/25/topology-review-hand/

Game Engine 1-3:
http://www.blendercookie.com/category/all/tutorials/game-engine/