Hey there everyone...
i'm gonna tell you how i do this mod...
step 1 : i watch mandela catalogue
step 2 : i played minecraft
step 3 : i start to learn how Mcreator works
step 4 : i made an Mandela Catalogue mod with, Alternate, intruder and also Satan.
There is 2 type of thing in the mod
the item : Become like us, Gun, ammo
and the mobs : Alternate, Aggresive Alternate, Alternate Vol.333, intruder (in the TV), intruder (not in the TV), the doppleganger, stanley and Angel Gabriel/satan.
Forge correct link : https://files.minecraftforge.net/net/minecraftforge/forge/index_1.18.2.html
Secret Scrimblo catalogue mod : https://youtu.be/dQw4w9WgXcQ