rawrawr
motion guides are actually useful if you do it right. :P mostly its for adding an arch to tweens. so the object doesn't just go straight :)
funny cartoon. at first I was like, damn I hate jimtopia, none of it is animated and its all tweens >:( but then it got really funny and enjoyable and you managed to use that basic animation stuff as part of the story.
so it was really good. you've definitely got writing skills, thats for sure.
if you want something to work on, try some frame by frame animation. most of your stuff is tweened, and its good to know both pretty well.