To prevent players from sequence breaking the game and accessing late-game worlds early, there are a number of metal sewage grates that block the entrances to each one until certain criteria has been met. However, there are two of these grates that are programmed with full functionality but go completely unseen.
This first one resides behind the rat colony's village and blocks the way back to Remy's initial arrival point. This is present during Remy's time in The City of Lights, but disappears as soon as Gusteau's fly-over cutscene for the hub plays upon the world's completion.This grate blocks the entrance to Little Chef - Big Kitchen. It gets taken down once Django appears in front of the entrance, which normally doesn't happen until The City of Lights has already been cleared and Remy can reach this part of the hub.
During development, all of the chase stages featured four sections with three checkpoints dividing them. Possibly due to being too difficult or too long, they were all shortened down to only three sections with two checkpoints, with the third checkpoints all becoming the chase endings. However, it seems this was a late decision, because all four chase scenes have varying amounts of leftover content from these unused fourth sections, still functional to some degree.
The chase in The City of Lights, subtitled "How'd You Make That?", features some scrapped steaming pipes and floor grates that Remy must run around."Chop Chop Chase", found in Little Chef - Big Kitchen, is the sole exception to the rule here, as its entire fourth section has been completely scrubbed from the map. If one uses a coordinates modifier to fly beyond the end of the stage however, it's revealed that the old camera data still exists.The City Market's chase, "Harried Grocery Havoc", has a pretty beefy fourth section, full of pits to fall in and obstacles to jump over. This is actually the only extended chase section that can be reached without hacks, as Remy can maneuver around the back side of the fish and go left, which skips the trigger to end the chase. However, it doesn't last long as an invisible wall automatically kills you as you make it to the rotisserie chicken.The final chase at the end of the game, being The Desserted Kitchen's "Was the Food That Bad?", features a final fourth section that sees Remy making one last mad dash down the center aisle of Gusteau's dining room as part of the game's grand finale.
As it turns out, the images seen in the mission briefing section of the cookbook are stored out-of-bounds within the worlds themselves, likely to be projected onto the menu when the player needs to see them. While not all of them are immediately obvious, here are the currently known ones.
Behind Colette's cooking station in Little Chef - Big Kitchen is the "story complete" image that shows up once The Desserted Kitchen has been cleared.Behind Remy's arrival point in the hub is the hub's map, albeit inverted.Beyond the unused fourth section of the chase in The City of Lights is the chase's escape prompt.Far up and away behind the distant rooftops of The City of Lights are a variety of images pertaining to the heist, as well as the "story complete" image and a blank texture.In the far corner behind the conveyer belt in The City Market are more heist images, the "story complete" image, a black texture, and one with yellow and black stripes.Behind the start of Leaky Pipes is this odd split texture.Beside the pipe entrance in The Slide of Your Life are these two angled textures. The white one is transparent, but the black one is not.Extremely far out of bounds in Home Stink Home is this oddly shaped piece of geometry with some black and white textures on it.
Watch on YouTubeAfter completing each chase level, the player is tasked with reaching the end of a pipe slide. In the starting rooms of each of these, a loading zone can be accessed that returns the player back to the main world, although it's normally closed off until the slide has been cleared for the first time. In Leaky Pipes and The Slide of Your Life however, by exploiting Remy's jump physics, it's possible to reach the loading trigger before beating the stage. However, even if the player decides to head back out to the main world, the game appears to have a built-in failsafe that kicks the player back into the pipe against their will.
In fact, if one uses hacks to force their way back into the hub during this closed off state, it's revealed that even entering the world in question from the hub side will yield the same result: getting sent into the pipe and told to clear it first.
It turns out that each of the heist minigames that take place in separate locations from the main world (such as inside the kitchen's storage cooler) are not only named, but have fully functioning loading screens as well, which go completely unused in normal gameplay.
"Sound the Alarm!" is the name given to Twitch's wire connecting minigame in The City of Lights. The interior of the circuit box is a separate stage from the main world, but since the minigame isn't playable in the minigames menu, this loading screen goes unused.Serge's blowpipe minigame in the kitchen's storage cooler is called "Take Aim and Blow". Just like before, the minigame is not playable outside of the heist, and so the loading screen was left to be forgotten."Shocking Starter" is Twitch's second wire connecting minigame, this time taking place inside a forklift in The City Market. This minigame is also locked behind the world's heist.Now this one is an odd case. "Appetite for Appetizers" is the blender minigame from The Desserted Kitchen, and is the first of four minigames featured in the world's heist. The strange thing is that the other 3 minigames are all properly featured and playable as separate games outside of the heist (likely due to being cooking minigames), so leaving this one out simply due to it not being a cooking minigame comes across as very odd.
Like any good 6th gen video game, there's a plethora of unused, hidden, and unseen parts of the game's stages and worlds just outside of the player's normal field of view. With the help of a coordinates modifier, we can easily expose every dirty secret the game world is hiding.
Using exploits to free roam in "Chop Chop Chase", reveals this strange green arrow object in an inaccessible unseen area near the level's beginning. It turns out that this arrow marks Remy's default spawn coordinates in the stage, being at the world origin, 0, 0, 0.Although the path back to the hub is blocked by falling rubble once Remy enters Paris Streets, it turns out there's a good bit of extra detail in this room beyond the rat hole that likely comes from an earlier point of development. Here, we can see that the large metal door is missing.Just on the other side of the rat hole are a large wooden crate and low-poly trash can that never show up like this in the actual hub.And behind those is a carved out part of the wall, representative of the entrance back into the hub itself. It's possible this version of the room was based on an old version of the hub.Surprisingly, this TV in Paris Streets is completely modeled on both sides, even though it doesn't need to be.Located out-of-bounds in Kitchen Pipe is this hole in the large wall that makes up part of the city's backdrop. It turns out that this is actually a 1:1 copy of an identical wall found in The City of Lights.As it turns out, Kitchen Pipe has a full early morning styled skybox that goes completely unseen in normal gameplay.Due to the game's draw distance for objects being so low, this large metallic object against this wall is too far out of bounds for the player to ever get a glimpse at it.Tucked away behind the entrance to The Desserted Kitchen is this seemingly random garland for lights.Far out-of-bounds in every stage is a large black box like this that is used for the various death cutscenes. There seems to be a mysterious glowing blue circle next to this one in the hub, however.Even though it has no reason to be, the area beyond the goal in Oh Smelly Water that represents the starting area back in the hub is fully modeled- however, it's not model accurate, as the room is significantly smaller than it actually appears in the hub, and the pipe exit is designed completely differently.A better look at the other half of the room. There doesn't appear to be any exits either.Although the floor is only briefly seen during the heist in The City of Lights, the kitchen interior actually has a good bit modeled here, including a wall (albeit untextured).This large slope/ramp is just outside the player's view in the rooftops of The City of Lights. This is actually a remnant of an older design for the area, as seen in Asobo's prototype of the game.While it is technically possible to see these in normal gameplay, editing player coordinates makes it much easier to see that these glass bottles on the wooden countertop behind Mabel in The City Market are slightly floating off the edge.Near the seafood section are these two market objects just chilling behind the wall.Far beneath the map is another one of these glowing circles, just like the one in the hub.Although Underground Fun is blocked off in The Desserted Kitchen by a black wall, it turns out that the rest of the vent beneath the black barricade is still fully modeled.Due to the entrance angle of the window leading out to "Kitchen Pipe", this odd bit of geometry goes completely unseen. It's unclear exactly what it is, but a fence of some sort or a dumpster are possible candidates.Above the exit out of Leaky Pipes is a bit of stone pavement that can be stood on that can't usually be seen due to the camera angle. Coming up here also gives us a better look at the odd skybox used here.Although it's hard to see, the opened closet door leading out of Underground Fun is always present, even when the pipe hasn't been cleared yet and the door appears shut. It turns out that there are two separate doors, and the closed one simply disappears once the pipe is cleared.Even though there is no sensible reason for it, the entire kitchen wall by the closet door is fully modeled and properly lit for the slide too.And similarly, the entire metal canopy over The City Market is present in The Slide of Your Life. It actually appears to be larger here than in the main world.Although the player can get a brief glimpse when climbing up the pipe slide's exit spool of thread, these boxes above the hole are fully modeled.In The Desserted Kitchen's chase, Mustafa has a brief appearance towards the end, where Remy must jump across two platters that he is holding. Before the player reaches this section, however, three lifeless copies of Mustafa can be found awkwardly standing frozen here.