Baba Is You Rules Guide

Baba Is You treats written sentences as the laws of the current level. Noun tiles such as BABA, ROCK, and FLAG identify objects. Operators such as IS connect those nouns to properties such as YOU, PUSH, STOP, and WIN. Whenever the words form a valid horizontal or vertical sentence, the rule takes effect immediately. Push one word out of line and the rule stops applying.

That simple system creates most of the game's difficulty. A move can change the position of Baba, but it can also change what Baba is, what you control, what is solid, and what counts as winning. Strong solutions therefore alternate between two kinds of reading: the physical board and the active rule list.

How to Read a Rule

The basic grammar is NOUN IS PROPERTY. BABA IS YOU means the Baba objects respond to your movement input. FLAG IS WIN means touching a flag with an object that is YOU completes the level. The words are not a caption; their grid alignment is executable game logic.

Rules are checked continuously. If you push YOU away from BABA IS, control ends at once unless another active sentence gives YOU to something else. If you complete two control rules, both object types respond together. This is often useful, but it can also make one controlled object collide with a hazard while the other moves safely.

At the start of every level, scan horizontally and vertically for every active sentence. Then identify which words are pushable and which rules are fixed against walls or borders. Fixed rules define the puzzle's boundaries; movable rules are your tools.

IS: The Operator That Rewrites the Board

IS links a subject to a property or another noun. With a property, it assigns behavior: ROCK IS PUSH. With another noun, it transforms every subject object: ROCK IS BABA turns rocks into Baba objects immediately.

Transformation can remove the original object type from the board. Before forming a noun-to-noun rule, check whether you still need the old noun or its objects. A transformation can be the intended bridge to a solution, but it can also erase the only target you planned to use.

YOU: Control Is a Property

YOU is not synonymous with Baba. Any noun can receive it. WALL IS YOU, ROCK IS YOU, and even multiple simultaneous YOU rules are valid. When a passage is impossible for the current character, ask which other object has the right position, shape, or quantity to become controllable.

Before replacing a control rule, stage the new sentence first. The safest swap changes control in one move or briefly keeps both rules active. Breaking the only YOU rule before the replacement is complete usually produces a soft lock: the level is still running, but no object responds.

Multiple YOU objects move on the same input. Plan around the most constrained one. A move that helps Baba but pushes another controlled object into DEFEAT still loses that object and may make the level unsolvable.

WIN: Winning Is Also Movable

An object with WIN completes the level when it overlaps an object with YOU. The familiar rule is FLAG IS WIN, but the flag is not inherently special. ROCK IS WIN works just as well if you can reach a rock.

Sometimes it is easier to move the WIN property than to cross the map. Look for a nearby noun with accessible objects, or consider making the controlled object itself WIN. If the same object type is both YOU and WIN, overlap behavior depends on the available objects and level state; often you need two instances so one can touch the other.

PUSH and STOP: Two Different Kinds of Blocking

PUSH lets a moving object shove the affected object when space exists behind it. Text is normally pushable, which is why sentences can be edited. A push fails when the destination is blocked, so always check the square beyond a word before committing to a narrow corridor.

STOP prevents entry. WALL IS STOP makes walls solid, while breaking that sentence may let objects pass through them. Removing STOP is not always safe: the wall may be holding back water, lava, or another moving object.

An object can have both properties. In practice, the active combination and surrounding rules determine whether it behaves like movable solid material. When a level provides both words, test the interaction with a reversible move instead of relying on the object's appearance.

NOT and AND: Negation and Shared Subjects

NOT reverses or excludes part of a rule. It is especially important in levels where a broad transformation would otherwise affect every object. Read the full sentence, not just the nearest three words, because negation can change which nouns or properties are included.

AND lets one sentence describe several subjects or properties. A construction such as BABA IS YOU AND PUSH gives Baba both properties. An AND chain is compact, but every linked word becomes structurally important. Breaking the middle can disable more of the rule than expected.

When debugging a long sentence, rewrite it mentally as separate short rules. That makes it easier to predict which behavior will disappear after a push.

HAS and MAKE: Creating Objects Through Events

HAS defines what appears when an object is destroyed or removed by another effect. If BOX HAS KEY is active and the box is eliminated in the appropriate way, a key can appear at that location. Treat the original object as a container and make sure the spawn square will remain usable.

MAKE causes one object type to produce another according to the level's interaction rules. Production can solve shortages, but uncontrolled creation can fill a small board. Before activating it, decide where new objects will go and how you will stop the process if necessary.

These operators reward sequencing. First prepare a safe destination, then activate creation, then use the new object. Reversing that order often traps the result behind STOP or outside the working area.

MOVE, SHIFT, TELE and Automatic Motion

MOVE makes objects travel automatically and turn when blocked according to the game's movement rules. It is useful for delivering an object to a target, but it also means the board changes after your input. Stage the route before completing the sentence.

SHIFT moves overlapping objects in the shifting object's direction. Conveyors are a common visual example, but the word rule—not the artwork—creates the behavior. TELE transfers objects between matching teleporting objects and can change which side of an obstacle matters.

For all automatic motion, observe one cycle before editing several rules. Note where objects turn, collide, or disappear. Then use Undo and make the smallest change that produces a stable route.

DEFEAT, SINK, HOT and MELT

Hazard properties describe interactions rather than moral categories. DEFEAT removes overlapping YOU objects. SINK typically removes both the sinking object and the object that overlaps it. HOT destroys objects with MELT when they meet.

The noun's artwork does not guarantee danger. Lava without an active hazardous property may be harmless, while a cute object with DEFEAT is dangerous. Check the rule list before trusting visual convention.

A Reliable Turn-by-Turn Method

Use this short loop on difficult levels:

1. Read every active horizontal and vertical sentence.
2. Identify the current YOU, WIN, blocking, and hazard rules.
3. Choose one rule change and predict its immediate side effects.
4. Make a single move, then reread the active rules.
5. Undo if the result removes control, erases a required noun, or closes the only route.

Common Rule-Reading Mistakes

• Treating object appearance as permanent behavior.
• Assuming Baba must remain YOU and the flag must remain WIN.
• Breaking the only control rule before staging its replacement.
• Forgetting vertical sentences while editing a horizontal one.
• Transforming a noun and accidentally erasing every copy of an object you need.
• Activating MOVE, SHIFT, or MAKE before preparing the route and stopping condition.
• Continuing after a diagnostic move instead of using Undo and applying what it revealed.

Where to Continue

Start with the beginner tips guide if you want a gentler introduction. The Lake guide shows how the vocabulary develops across a full area. For examples of identity swaps, automatic movement, and preservation puzzles, compare the Tunnel, Queue, and Starry Skies walkthroughs.