1. Rat Maze Game
2. Rat Maze Designs
3. Rat Maze Printable
4. Rat Maze Images
5. Rat Maze Rift
6. Rat Maze Game
7. Rat Maze

The best-known rule for traversing mazes is the wall follower, also known as either the left-hand rule or the right-hand rule.If the maze is simply connected, that is, all its walls are connected together or to the maze's outer boundary, then by keeping one hand in contact with one wall of the maze the solver is guaranteed not to get lost and will reach a different exit if there is one. Guide a rat through a booby trapped maze, hold cheese before its nose to make it walk. Collect power-ups and different types of food to earn more points. Get to the exit safely, there are 27 levels to play through and 12 achievement medals to earn.

1. Watch 25 trials of a rat from this treament group. How do hormones, like estrogens, affect learning and the formation of memories? Students use this simulation with videos from a real laboratory to test how rats perform in a maze test.
2. Your rat starts out in the upper left corner lead him to the lower right corner. Use the mouse to click on the maze and leave the cheese. Lead the rat out of the rat maze game before you run out of cheese and time. Enjoy rat maze game at The PCman's fun, free games arcade.

The Resourceful Rat's Lair (only referred to in-game as ???) is a secret chamber in The Gungeon, accessed through a hidden passage found in the Black Powder Mine. It requires at least one key, two blanks, and the Gnawed Key to enter. As the name suggests, it is the domicile of the Resourceful Rat and as such, nearly all floor features are themed around him. This includes the map only showing an animation of him holding a piece of cheese on a fishing rod and even the loading screen when entering the chamber.

Throughout the chamber, the player will encounter numerous rats holding candles. While these rats are harmless under normal circumstances, dying instantly upon player contact and occasionally yielding money, they can be jammed if the player has any curse, which will cause them to deal contact damage.

Like Bullet Hell this floor features no shops and no chest rooms (unless one counts the reward room after beating the boss).

How to access[edit | edit source]

Reaching the Resourceful Rat's Lair requires the Gnawed Key, a key to open the trapdoor (or any key replacing items like Shelleton Key or AKEY-47), and 2-3 blanks (or an explosive item or weapon that can open secret rooms).

• In the Black Powder Mine, a room will have 2-4 rats running on the ground, as a hint. In this room there will be a locked trapdoor hidden by dust that can be revealed by walking on the respective tile, spraying it with Goop, water from the Mega Douser, or using a blank in the room (short-range blank effects, like blank bullets, will not reveal the trapdoor). A larger than normal dust cloud will appear when walking over the respective tile.
• After unlocking the trapdoor with any normal key or key-replacing items, falling down it leads to a minecart on a track. Ride the minecart (or walk on the track) to the end, then use a blank to reveal a secret passage (activating a blank effect anywhere including the area before the track will reveal the room). Alternatively, if you have armor, taking damage (by falling into the pit) will reveal the first secret passage.
• At the end of the secret passage, use another blank to reach a room with another locked hatch.
  • Alternatively, Bloodied Scarf can be used to teleport past both passages without using blanks.
  • Armor cannot be used to open the second passage unless the player has other means of damaging themselves as the first passage is considered a separate room from the one with the pit.
• Open the hatch with the Gnawed Key and enter it.
  • Entering the Lair for the first time will unlock the Weird Egg.

Notes[edit | edit source]

• The Gungeon Blueprint does not show the trapdoor's icon on the map.
• After falling down the trapdoor, there is a ladder to get back to the Black Powder Mine.
• If the player rides the minecart leading to the Gnawed Key hatch, the player will be repeatedly teleported backwards in the tunnel, making it appear longer than it actually is. This does not occur if the player does not ride the minecart, making it faster to walk on the tracks instead.
• The rats around the hatch can be jammed, and will deal contact damage.
• The Trusty Lockpicks, Drill, Shelleton Key, and AKEY-47 cannot open the hatch to the Resourceful Rat's Lair that requires the Gnawed Key.
• If the players kills the roaming rats and leave the room unattended for a long time, the rat corpses will disappear.
• If the player has flight when entering the Resourceful Rat's Lair, the loading screen will be the default loading screen instead of the rat variant.
• If the player teleports while falling into the trapdoor, the game will act like the player fell in a normal pit, dealing damage to the player.
• If the player enters the trapdoor before clearing the rat room, then teleports out of the minecart room and overrides that teleport, the rat floor will become softlocked.
  • The player may be able to correct this with the use of an explosive weapon, which may be able to deal AOE damage through the door. Or through the use of Bloodied Scarf to teleport back into the room.

Layout[edit | edit source]

Upon entering the floor, the player must fall down the hole in the room to the right to enter the maze.

Maze[edit | edit source]

The maze consists of an endless grid of square rooms filled with enemies. The player must use the clues from the six Infuriating Notes in the Ammonomicon to determine the correct sequence of directions to travel. Each note ends with a piece of cheese pointing in a specific direction, and the six directions are in order of the six notes in the Ammonomicon. If the directions are successfully followed in order, the player will reach the Resourceful Rat. However, if the player wanders too long without finding the Resourceful Rat, they will simply be taken to an elevator to the Hollow.

Since the correct sequence required to find the Rat is randomly generated, copying the route of another player is ineffective. However, once the correct route to the Rat has been found, it will stay the same for that player on all future playthroughs.

Fight[edit | edit source]

See Resourceful Rat.

Post-Rat[edit | edit source]

After the Resourceful Rat has been fought, the player will be taken to a room with eight pedestals with 2 keys, 1 Glass Guon Stone, 1 Blank, 1 full heart, 1 armor, 1 ammo box, and 1 spread ammo box, along with four special chests that can be opened with special Rat Keys dropped by the Resourceful Rat. These chests always contain Elimentaler, Partially-Eaten Cheese, Resourceful Sack, and Rat Boots. The room also has a secret room, where a serpent is behind two locked doors that can be opened with Rat Keys.

• While there are two locked doors, the player only needs to use one Rat Key to feed the serpent.

After leaving the loot room, the player can either head to the Hollow or spend a Rat Key to skip to the Forge.

Notes[edit | edit source]

• The maze in the Switch release of Gungeon is consistent at: down, right, down, up, down, up
• The directions to the Resourceful Rat are randomised for each player, but are the same between save files.
  • As a result, the Infuriating Notes can be skipped on different save files. Doing so causes the Rat to say 'What!? How did you find me? You are either exceedingly lucky or some kind of hacker!' during the intro.
• If the player has Mimic Tooth Necklace, a mimic with googly eyes will tell the player the Mimic Union is spread thin and can't provide mimics for the Rat Chests. Despite this, the Rat Chests can still be mimics.
• The chests can be opened using Trusty Lockpicks.
• The chests will drop a random rank gun/item if the player has that item currently in their inventory.
  • This does not apply if the chest in question is a Mimic, making it possible to obtain multiple Rat Boots. Other duplicates will simply disappear upon pickup, however.
• It is possible to feed the Resourceful Rat to the serpent by kicking him towards it.
• Teleporting into a new room using the Bloodied Scarf may cause the game to softlock. (PC)
• The room in which the serpent is held will not be open unless the player has defeated the third phase of the Rat fight during that run.
  • This can be bypassed by using the Bloodied Scarf and teleporting to the place in which the room would usually be. This causes part of the black area surrounding the room to brighten up and turn light grey where the room would usually appear.
    • The player can feed the serpent when teleporting in. However, feeding the serpent the Bloodied Scarf will result in a softlock, as the player will have no way to escape the cell.
• The Resourceful Rat will not steal items left on the ground on this floor. However, since rooms cannot be re-entered once left, this is only observable when using items that transport the player back to the beginning of the chamber, such as Gun Soul.

Boss[edit | edit source]

Enemies[edit | edit source]

• In addition, the skeletal rat-like minions summoned in the Resourceful Rat Boss Fight can appear in large quantities.

Rooms[edit | edit source]

Most rooms in the lair share the same square-like shape with an exit tunnelling on each side. The contents of these rooms are as follows:

• 2 random Shotgun Kin variants and 1 Mutant Shotgun Kin (all 3 being jammed) guarding an Ammomancer.
• 2 Lead Maidens.
• 2 Chance Kin accompanied by a player-seeking Dead Blow.
• 1 of each Shotgun Kin variant (excluding Executioners and Shotgrubs), a Shotgat and a Creech. Following this either when all enemies are slain or nearly all, a Jamerlengo appears.
• A jammed Chancebulon. This wave is followed by another jammed Chancebulon together with 2 regular Chancebulons.
• An on-spawning army of Rat minions.
• A horde of Spents together with a Gunreaper. After a fair few are slain, 2 Skullets and a Jammomancer join the fight.
• An empty room.
• 2 Shelletons.
• 2 Phaser Spiders.
• 2 Chancebulons and a Misfire Beast.
• 2 Pinhead, 1 Killithid and 1 Cubulon.

Every room has TNT, Tables, Coffins and Phaser Spider webs strewn about randomly.

See also[edit | edit source]

• Different kinds of mazes and what they're used for:

Rats have been used in experimental mazes since at least the early 20th century. Thousands of studies have examined how rats run different types of mazes, from T-mazes to radial arm mazes to water mazes. These maze studies are used to study spatial learning and memory in rats. Maze studies helped uncover general principles about learning that can be applied to many species, including humans. Today, mazes are used to determine whether different treatments or conditions affect learning and memory in rats.

Rats are particularly gifted at running mazes. Their maze-running ability comes from their evolutionary history: rats are small burrowing rodents that have spent millenia digging and finding their way around underground tunnels. It's no wonder they have a knack with mazes.

This is the kind of maze everyone thinks of when they think of rats and mazes. The maze consists of a large platform with a series of vertical walls and a transparent ceiling. The rat starts in one location, runs through the maze, and finishes at a reward in another location.

How many trials does it take for a hungry rat to run the maze to the food reward at the end with no mistakes? How quickly does the rat complete the maze each time? Does the rat get faster over multiple trials? Over time, rats tend to run the maze with fewer and fewer errors, more and more quickly. By graphing the number of errors over time, you can generate a learning curve for the rats.

The T-maze is shaped like a T. The test animal starts at the base of the T. A reward may be placed in one arm of the maze, or different rewards may be placed in each arm. The rat walks foward and chooses the left or right arm of the maze.

What kinds of questions can you answer with a T-maze?

Side preferences: The simplest question one can ask in a T-maze is whether a rat has a natural side preference. With no reward in either arm, does a rat prefer to go right or left?

Alternation: You can study natural alternation by running a rat in a T-maze over multiple trials with no reward. Do rats alternate between left and right arms? You can also train rats to alternate by rewarding first one arm, then the other, over many trials. The rat should learn to choose the arm that was not visited on the previous trial.

Learning: T-mazes are also used to study simple learning. You can place a reward at the end of one of the arms, then run a hungry rat through the maze multiple times. How many trials does it take before the rat chooses the correct arm most of the time? Further, if the reward is removed, and the rat is run through the maze multiple times, for how many trials does the rat continue to prefer the now empty arm? If the reward is replaced, how many trials does it take for the rat to re-establish a preference for that arm?

Preference: T-mazes are used to ask rats to choose between two options. A different reward is placed in each arm of the maze. Rewards can be anything: different foods, another rat in a small cage, shelter, an odor. The rat is allowed to explore the whole maze. Then the rat is placed in the start location, and the researcher records the rat's choice: for example, the amount of time the rat spends at the end of each arm over a period of time (say, 5 minutes). You can ask the rat all sorts of questions, like:

• Whether a rat prefers chocolate cake to peas
• Whether a rat prefers familiar-smelling bedding to fresh, unsoiled bedding
• Whether a female rat in heat prefers one male rat or another
• Whether a male rat prefers a strange or familiar female
• Whether a young rat prefers an adult male or an adult female
• Whether a rat prefers to eat food from a bowl other rats have already visited, or identical food from a new, clean bowl.

The multiple T-maze is a complex maze made of many T-junctions. Performance in the multiple T-maze is easy to measure because each intersection is identical and has a clear right or wrong answer. The multiple T-maze is also quite challenging for rats.

What kinds of questions can you ask with a multiple T-maze?

Multiple T-mazes were used to answer questions of place vs. response learning and cognitive maps.

Cognitive maps and latent learning: do rats learn a maze by choosing the corridors that lead to a reward, or do they generate an internal map of the maze even without a reward (called latent learning)? To answer this question, researchers placed a rat in a maze and let it explore the maze with no reward. The rat simply wandered about. Then the researchers started placing food in the reward corner. Rats who were already familiar with the maze learned to solve the maze more quickly and acheived better scores than rats who had never been given exploration time. Their proficiency indicated that the rats had generated a cognitive map of the maze during their explorations (Tolman and Honzik 1930).

Place learning vs. response learning: Do rats solve the maze by learning that the goal box is in a particular place in space, relative to cues outside the maze? For example, they might learn to go toward the place closest to the room's window or under an overhead lamp. This is called place learning, and is the chief form of learning in cognitive map theory. Alternatively, rats might learn a particular response to a maze, like 'left, right, left, left, right.' This is called response learning and belongs to stimulus-response theory. In this theory, rats choose to go left or right depending on which choice led them to the food in previous trials. The food reward reinforces the correct choices.

So, do rats use place learning or response learning? This question was tested by letting rats familiarize themselves with a maze. After a certain number of trials, the whole maze was rotated in the room. How well the rats performed after the rotation depended on (1) how many external cues were available, and (2) how many practice runs the rats got ahead of time. If rats were given lots of external cues (windows, overhead lamps, a clock on the wall) and ran the maze only a handful of times before testing, then they used place learning and made choices that brought them to the place in the room where the food reward was usually located. However, if external cues were few, and rats ran the maze hundreds of times before testing, then they used response learning. They consistently chose the same path regardless of how the maze was rotated (see Malone 1991 for more).

The Y-maze is similar to the T-maze, but it has three identical arms. The rat starts at the end of one arm, then chooses one of the other two. The Y-maze is a little easier than a T-maze because gradual turns decrease learning time as compared to the sharp turns of the T-maze.

What kinds of questions can you answer with a Y-maze?

Y-mazes can be used to ask all the same questions as T-mazes. For example:

Alternation: if rats are left in the Y-maze for 5 minutes, how do they explore it? Do they explore each arm in turn? Do they remember which arm they entered last?

Novelty and memory: Do rats prefer to spend time in new or known areas? To test this, one arm of the Y-maze is blocked off and the rat is allowed to explore the other two arms for about 15 minutes. Then the rat is placed in the start arm and the blocked arm is uncovered. Does the rat prefer the new arm or the known one? To test the rat's memory there might be a delay of several hours between the familiariazation phase and the test phase. The rats' memory function might then be tested under different conditions, like under the influence of drugs that may inpair or enhance memory.

The most interesting Y-maze I've ever seen was a giant underwater Y-maze used to test preferences in sharks!

The radial arm maze has a center platform with eight, twelve, or sixteen spokes radiating out from a central core (Olton and Honig 1978).

What kinds of questions can you answer with a radial arm maze?

Short-term memory: Do rats remember which arms of the maze they've already visited? To test this, a single food pellet is placed at the end of each arm. A rat is placed on the central platform. The rat visits each arm and eats the pellet. To successfully complete the maze, the rat must go down each arm only once. He must use short-term memory and spatial cues to remember which arms he's already visited. If a rat goes down an arm twice, this counts as an error. The rat's performance on the maze is considered a test of short-term memory. Short-term memory can then be tested in different rats or under different treatment conditions. For example, do males perform better than females? What about young vs. old rats?

Behavioral neuroscience: The rats might be given particular drugs (like alcohol) to see if these impair or enhance short-term memory. Different brain areas might also be impaired to see how important they are in short-term memory tasks.

Rat Maze Game

Rat Maze Designs

The Morris water maze (Morris et al. 1982) is a large round tub of opaque water (made white with powdered milk) with two small hidden platforms located 1-2 cm under the water's surface. The rat is placed on a start platform. The rat swims around until it finds the other platform to stand on. External cues, such as patterns or the standing researcher, are placed around the pool in the same spot every time to help the rat learn where the end platform is. The researcher measures how long it takes for a rat to find hidden platform.

What kinds of questions can you answer with a Morris water maze?

Spatial learning, place learning, cognitive maps and memory: How many trials does it take for the rat to locate the hidden platform? What kinds of spatial cues does a rat use to find the hidden platform? What happens if these cues are changed or moved?

Rat Maze Printable

Behavioral neuroscience: What parts of the brain are used for spatial learning and memory? The Morris water maze is very popular for studies of behavioral neuroscience (D'Hooge and De Deyn 2001). For example, how does a trained rat's performance change after manipulation of different parts of its brain, like the hippocampus (e.g. Burwell et al. 2004, Harker and Whishaw 2004)? How does performance change after a rat receives certain drugs or enzymes (e.g. Dash et al. 2004)? How well do different strains of rats perform?

Rat Maze Images

Rat Maze Rift

Rat Maze Game

Rat Maze