Setting Up a Nighttime Test Field
Instead of searching for boss fights in Survival just to verify your resource pack is working, you can preview the over 30 unique skins in a Creative world. Testing in the dark makes it much easier to see creepy details like fierce glowing eyes and pale skin tones.
1. Create or load a Creative mode world and find an open grassy field.
2. Set the world to nighttime using /time set night so the dark surroundings highlight glowing eye textures on the reskinned models.
3. Open your Creative inventory and search for the spawn egg that summons the giant mutant zombie from the Mutant Beasts mod.
Spawning and Comparing Monster Looks
With OptiFine random entity features active, each giant undead monster you place will pull randomly from the pack's pool of over 30 textures.
1. Use the spawn egg on the ground several times in a row, spacing the giant zombies a few blocks apart.
2. Walk along the group to confirm none of them use the standard green mutant zombie model.
3. Look for distinct variations side by side, such as a giant mutant zombie wearing a blue shirt, a muscular grey zombie with white eyes, and other variants with rotten skin and altered clothing.