Impossible mode file

How to install the mod?
{
1.Find the game folder.
2.Open the game folder.
3.Move the folder "dd" to the game folder.
4.Launch the game.
}

How to uninstall the impossible mode?
{
1.Find the game folder.
2.Open the game folder.
3.Open a folder called "Previous mode".
4.Move the folder "dd" to the game folder.
5.Launch the game.
}

What is the Impossible mode?
{
Well....
It is too hard to explain and survive.
}

Where can I see more?
{
Steamcommunity.com
Dataram.gamejolt.io
Youtube.com
Twitter.com
}