This mod is based on Poppy Playtime Chapter 3, where you'll face the final boss, CatNap, as Boyfriend.
During the battle, characters like Huggy Wuggy, Sonic.exe, Mario.exe, Black Impostor, Lemon Monster, and Hypno will appear as hallucinations in the middle of the song. The loading screen and main menu feature custom aesthetics based on the game and the areas where CatNap appears.
When starting a new game, you'll see a scene introducing the mod's main mechanics. Throughout the game, you'll progress through different stages with custom backgrounds from the original game. At the end of the game, you'll encounter a secret final scene.
If you're a fan of Poppy Playtime and FNF, this mod is a thrilling experience you won't want to miss!