It also doesn't seem to have all that much to do with hitchhiking. Sure there's a thumb cursor and some vehicles you're trying to "flag down" via all manner of Wii-mote flailing you can imagine. But where's the grungy charm, the moral ambiguity? And where is the vague threat of being stabbed?
Let's Zenryoku Hitchhike!!!!!!!!! focuses on the more attractive aspects of hitchhiking—thumbing efficiently for free rides on cows, tractors and rickshaws—with none of the negatives—having your corpse dumped behind the brush of an interstate rest area.