Well, what do we have here? A garbage dump thats turned into a huge mountain, a bald judo master (brilliantly portrayed by Sho Aikawa) that tries his best to teach his art to his mentally deficient friend (Asano), slower than snails zombies (which quickly take over Japan), and a society that is so desperate for entertainment that they pit zombies against humans in old Roman style, to-the-death battles.
All this sounds unintelligible and, in some ways, it is. But, at its core its nothing more than a comedy buddy/road film and it works well if viewed in that manner. Its not great, but its also an enjoyable experience thats well worth a viewing.