looks great! of course, it's really simple, but we all made simple models in the beginning.
some of us (ME!!) still do!
the only way i can imagine this guy getting around is hopping.
And you should just dive into rigging him! i know it seems too complex and all that, but you've made a nice, simple character, and that's perfect for getting started with rigging! you don't have arms to worry about, fingers, toes, all that crap. all you need, basically, are some legs.
making the bones and placing them will be easy, but "skinning" them will be hard, especially depending on how you made you model. you may even have to start over re-rigging him a few times. don't worry about it though! that's how you learn!
i think you can do it if you give it a try!