The Poppy Playtime Nightmare Critters are ready to make their debut in Poppy Playtime Chapter 4, seemingly having quite a vital role to play, just as CatNap and the Smiling Critters do in Deep Sleep.
However, he isn’t the only enemy you need to worry about in the next game, as the Nightmare Critters make their debut in Chapter 4 as well, the scarier version of the Poppy Playtime Smiling Critters.