How to use Minecraft Undertale's alternate universe skin ?

Learn how to download and apply the Undertale's alternate universe skin for Minecraft on PC (Java Edition) or Pocket Edition (PE).
PC (Java Edition):

1. Go to the Minecraft website and login to your account.
2. Click the “Minecraft Java Edition” dropdown menu and select “change skin”.
3. On the next page, click “select file” and upload the Undertale's alternate universe skin file.

1. Open the game app and press the “dressing room” button on the main menu screen.
2. Press “Edit Character” -> “owned skins” -> “choose new skin” and upload the Undertale's alternate universe skin file.

Does this skin have thick or skinny arms?

This particular Undertale's alternate universe skin has thick (4px) arms. It is based on the classic Steve model.

What color is this Undertale's alternate universe skin skin?

This particular Minecraft Undertale's alternate universe skin has the following color palette:
Moss Green
Casal
De York
De York
Sprout