4.0 Mob Tweaks.jar is an alpha file of the Minecraft mod Worlds Hardest Mod By GWCJ, made for Minecraft 1.15.2. It was published on January 29, 2021 and is 0.9 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Worlds Hardest Mod By GWCJ mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
