Disappearing Worlds

Minecraft but all the blocks from void to world height disappear 10 seconds after you step on that location!

Features:

• A brand new challenge where you can never step on the same place twice
• /startworldcrumbling to begin
• /stopworldcrumbling to stop
• /delayworldcrumbling to set the delay in ticks between walking on a block, and that area disappearing
• /randomdisappear to make blocks around the player disappear instead of directly below only
• /singledisappear that makes blocks disappear 1 at a time around the player