Studio BBB has built a game about emotion that rarely asks the player to read much about emotion. Happiness sends Mono higher. Anger lets him scale walls. Sorrow changes how he moves through water and narrow spaces. Anxiety protects him from danger. Then those same feelings can be sung into the creatures sharing each level, changing what they do and, with it, the geography of the stage. The idea is simple enough to understand within minutes. Its consequences take nearly the entire game to unfold.
That clarity suits a debut made in Seoul and released into a genre whose visual grammar is already international. Monowave does not lean heavily on Korean iconography or a regional storytelling tradition that the game itself does not establish. Its language is movement, colour, reaction, and cause. Studio BBB takes the familiar structure of a platformer and makes emotional behaviour the part that needs no translation.
Mono is a newborn Guardian tasked with recovering the scattered fragments associated with the Prism Tree. That premise provides enough direction, though the plot remains deliberately light. What gives the game personality is the way each emotional state changes both Mono and the creatures around him.
A joyful gorilla can launch him across a gap. Anger can turn that same creature into a way of destroying an obstruction. Anxiety changes its behaviour again. Elsewhere, a sorrowful whale sinks while a happy one produces a useful water spout. Crocodiles, lizards, and other animals become small systems with several possible functions rather than fixed environmental props.
The distinction matters. Plenty of puzzle games assign four colours to four locks and call it a mechanic. Monowave asks the player to learn behaviour. A new creature initially presents a small mystery: what does anger make this thing do, and can that reaction solve the problem in front of me?
The game becomes increasingly confident about combining those answers. Later stages may require carrying the correct emotion through part of the level, transferring it to an animal, using the resulting behaviour to reach another section, then relying on Mono’s own movement abilities to finish the sequence.
Those abilities grow with him. Dashes, double jumps, and other upgrades gradually turn what begins as modest platforming into a broader movement set. Studio BBB is careful about giving each new tool time to settle before combining it with existing ones, and the relatively compact stages help.
Nearly fifty levels are arranged across four regions, with hidden exits, secret stages, boss encounters, and three optional collectibles per stage. The structure belongs to decades of familiar platform-game design. Here, that familiarity works as scaffolding. The stranger idea, emotions functioning as transferable states, always has a recognizable frame around it.
The strongest puzzles are conversations between convention and invention. You know what a wall jump is. You know what a moving platform does. Monowave’s question is what happens when a creature’s mood determines which piece of level architecture it effectively becomes.
The game is unusually thoughtful about helping the player answer that question. You can move the camera around to inspect a stage before committing to a route. Menus record information about creatures, hazards, and environmental objects after you encounter them, so progress includes learning the world’s rules rather than memorizing everything perfectly. Most useful is the hint system.
Remain stuck long enough and a meter fills, allowing the game to reveal a limited part of the solution. It then withdraws and begins recharging instead of tracing the entire puzzle for you. Monowave wants assistance to restore momentum, not replace understanding, and its best puzzles still belong to the player after the hint has appeared.
The unevenness arrives when the game asks for precision rather than interpretation. Some later platforming sequences introduce difficulty spikes that feel harsher than the puzzle logic surrounding them. Movement can occasionally feel floaty, hazard hitboxes are not always as forgiving as the otherwise approachable design suggests, and one boss encounter stands out as a sharper obstacle than much of what precedes it. Longer late-game sequences can also demand enough backtracking or execution that the relaxed rhythm tightens considerably.
These problems expose an interesting split. Monowave communicates its invented systems with confidence, yet some of its most ordinary platforming demands are where friction appears. The unfamiliar material is often easier to read than the familiar material is to execute.
Its visual design helps enormously. Characters and environments are drawn in bright, glowing lines against deep black backgrounds, evoking chalkboards and children’s scratch-art books without looking like either one copied literally. Emotional states are immediately legible because colour is doing mechanical work. Mono changes. Creatures change. A puzzle can be understood partly by looking at the screen before consulting a menu.
The soundtrack follows the same principle by giving each region an emotional identity. The volcanic area, associated with anger, leans into a military drumbeat, while other regions receive music matched to their dominant mood. One missed opportunity is that the score appears tied more strongly to location than to whichever emotion Mono currently carries. Considering how responsive the animation and creature behaviour are, music could have joined that network of reactions.
This relationship between image, sound, movement, and emotion gives Monowave much of its cross-cultural readability. Clear state changes, readable animation, and movement carry information before exposition needs to. Studio BBB’s variation is to make feeling itself part of that control language.
That is also why the sparse story works better as a framework than as the main attraction. Brief dialogue-free cutscenes connect the regions, while additional explanations sit in menus for players who want them. Some may find Mono’s adventure touching, and there is warmth in the little Guardian restoring a world thrown out of emotional balance. The richer idea is expressed through play.
Anger is useful. Anxiety is useful. Sorrow is useful. Happiness is useful. None of them exists as the correct permanent state. Every time the player deliberately gives a supposedly unpleasant feeling to a creature because the situation requires it, the game’s argument about emotional balance becomes mechanical rather than rhetorical.
Local co-op is less convincing. A second player controls Prism, the floating companion normally associated with hints, and can assist with interactions and point out elements in the environment. The arrangement makes sense for a parent helping a younger player, yet Prism has far less agency than Mono and removes access to the usual solo hint function. It feels adjacent to the central design rather than deeply integrated with it.
Monowave is much stronger when a single player is learning its emotional vocabulary directly, watching the same creature become obstacle, tool, threat, or ally depending on the state passed into it. Studio BBB has taken a form built from familiar platforming traditions and found a portable idea inside it. The game may come from Seoul, but its most successful act of translation happens without subtitles: colour changes, behaviour follows, and the player learns what a feeling can do.
The Review
Monowave
Monowave gives a familiar puzzle-platformer structure a distinctive identity by making emotion part of movement, creature behaviour, colour, and problem-solving. Studio BBB's strongest achievement is how easily that system communicates across language and culture, while still leaving room for experimentation. Some late precision sections, uneven hitboxes, and a limited co-op role create friction, yet the central mechanic remains inventive and consistently rewarding.
PROS
- Excellent emotion-based puzzle system
- Strong visual communication
- Inventive creature interactions
- Smart, restrained hint design
- Distinctive scratch-art presentation
CONS
- Late difficulty spikes
- Occasional floaty movement
- Some unreliable hazard hitboxes
- Co-op feels underdeveloped
