Takahide Hori spent four years making the 30-minute film Junk Head 1, and you can see the love that went into crafting its grimy subterranean future and sculpting the bizarre creatures that inhabit it. It follows a human sent underground to investigate a world filled with freakish people and vicious monsters.
You can read the backstory for Hori's Junk Head setting on his website, or you can just sit back and enjoy the madness. He's also currently raising funds on IndieGoGo so that he can devote his time to making a Junk Head sequel.
Update: Our sister site Kotaku also featured Junk Head 1, and also interviewed Hori about the short a few weeks back.