A new mob boxy boo from Poppy PlayTime in Melon playground is called Project PlayTime Addon.

Everyone is referring to this addon as "boxy boo," "killy willy" (huggy wuggy skin), and "hamburger version of boxy boo," though I'm not sure of its original name.

Features:

- Simple one-click installation of mods
- An approachable and practical user interface
- A unique collection of different mods
- Melon playground's free mod add-on

This Project PlayTime mod melon app is unofficial, as stated above. The melon playground mod installation and customization are made easier by this app.
This is an add-on with instructions, not a game.