The Challenge Mode Cube

Does anyone know what UHC (Ultra HardCore) is? if you do not here is the link that explains it.
http://sethbling.com/uhc-box watch the video too.

I Did something similar but different.
When the box is put into your world you will notice something
- it is already night
Yes it will always be night time

Second of all you will not regenerate health naturally and must rely on golden apples.

Some items will be cleared from your inventory.
- water bottles and potions (you can't brew potions)
- doors and fence gates (if you want good shelter protection get an iron door)
- obsidian (yeah no enchanting or going to the nether at least not with a portal)
- gold ore, gold nuggets and gold ingots (golden apples are not crafted... you will see later)

In the box is a villager. he will trade you certain items that can't be gotten naturally
- 9 iron ingots and an apple for 1 golden apple (since this is your only health source and can't be crafted they are gotten cheaply)
- 1 nether star and 7 glass for a beacon (you can't obtain obsidian)
- eye of ender and blaze rod for an ender chest (you can't obtain obsidian)
- one diamond pickaxe for 2 Block 90's (block 90 is the purple portal itself)

Lastly all exp you have be taken away so you cant even enchant with an Anvil as well as having slowness.

HAVE FUN