About Undertale Yellow Unblocked

Undertale Yellow is a fan-made prequel to Undertale, built over seven years by Team Undertale Yellow and released free on 9 December 2023 for Windows. It is not by Toby Fox, but it is one of the rare fan projects made with his knowledge: the project's founder, the writer and composer known as MasterSwordRemix, started it in 2016 after getting Fox's blessing, and the team grew past twenty artists, animators, writers and musicians before launch. The version on LemonArcade is a browser port of that GameMaker game, so you play the full story without installing anything.

You control Clover, a human child with the yellow soul of Justice who climbs Mount Ebott to find out what happened to five children who fell before. Clover carries a gun, which changes combat from Undertale's timing bar into a small shooting mini-game, while dodging still happens in the familiar box with your heart. Flowey tags along from the start, and the underground you cross is mostly new territory: Dark Ruins, Snowdin's outskirts, the sand-buried Dunes and its cowboy town Wild East, then the industrial Steamworks before Hotland and the capital. The people you meet along the way, Dalv, Martlet, Starlo, Ceroba and the robot Axis, are all original characters.

As in the original, you decide whether to fight or spare, and the game tracks it. There are Neutral, Pacifist and Genocide routes, each with its own bosses, dialogue and endings, and the Pacifist route ends with a set piece that most players consider the highlight. A true Pacifist run requires befriending specific characters through side content, so the game rewards poking around Wild East and talking to everyone twice. Undertale Yellow also adds things the 2015 game lacked, from a run button by default to a soundtrack of roughly 135 tracks written almost entirely for this project.

What sets it apart from the hundreds of other Undertale fan games is scale and restraint. It is a complete eight-to-twelve-hour RPG with its own overworld puzzles, its own humour and a story that stays consistent with Undertale's timeline instead of rewriting it. The tone borrows Fox's mix of jokes and sincerity without copying his sentences, and critics noted at launch that a few of its boss fights stand alongside the original's best. The reception was large enough that Fox himself responded publicly to a dispute over the soundtrack's use of his musical motifs, settling it with a charity donation rather than a takedown.

It suits players who finished Undertale and want more of that world, and it works as a first Undertale for anyone who has never played one, since it happens before the original and spoils nothing. Bullet-hell dodging is the main skill; the game is fair on Neutral and Pacifist, and noticeably harder on Genocide.

On LemonArcade it runs free in the browser with no download or account. This is a long game with keyboard controls, so it is a desktop experience: WASD or the arrow keys move, Z confirms, X cancels, and touch input only handles basic taps. Sessions of twenty minutes work fine because the game saves at save points, but that save lives in your browser's storage, so use the same browser and device to continue. Expect a longer initial load than a small arcade game, and give the tab a moment when moving between areas.

Tips for Undertale Yellow Unblocked

• In fights, use the shooting mini-game's timing: aim for the centre of the target for full damage, and remember that landing hits on a boss you plan to spare still counts as violence.
• Talk to every resident of Wild East and take the optional errands; the true Pacifist ending is locked behind friendships that a straight run through the story will miss.
• Keep at least two healing items from the Dunes shops before Steamworks, because its bosses last longer and drain a full health bar over several phases.
• Save at every glowing star you see, especially before entering a new building; the browser save only records what you committed at a save point.
• Spare enemies by exhausting their ACT options rather than guessing; each monster has a specific sequence, and the yellow text in the menu tells you when it worked.
• Buy defensive armour before offensive upgrades on Pacifist routes, since you will never be dealing damage and every boss is a dodging test.
• If you want the Genocide route, grind every area's kill counter to zero before moving on, or the game silently drops you back to Neutral.

Did you know?

• Undertale Yellow was released for free on 9 December 2023 after roughly seven years of development in GameMaker Studio by Team Undertale Yellow, a group of more than twenty contributors.
• The project began in 2016 when its founder MasterSwordRemix asked Toby Fox for permission to make a prequel; Fox agreed, and the game is set before the events of Undertale.
• Clover, the protagonist, carries the yellow Justice soul and fights with a gun, which turns attacks into a small shooting mini-game.
• The soundtrack contains around 135 tracks, almost all original; a dispute over motifs borrowed from Undertale's music was settled when Fox made a donation to the charity AbleGamers.
• The game reached about 350,000 downloads on Game Jolt in its first month and was praised by outlets such as RPGFan, which placed some of its fights on par with the original.