Undertale Yellow: Martlet Fight Simulator

How to Play Undertale Yellow: Martlet Fight Simulator

Step into the snowy forests of the Underground with Undertale Yellow: Martlet Fight Simulator, developed by community creator dino7597. Martlet, the earnest yet comically unorganized royal guard sentry from Team Switched and MasterMax888's celebrated prequel Undertale Yellow, challenges Clover in an unforgettable duel. If you have faced her ultimate serum-fueled genocide form in Zenith Martlet Fight Simulator or endured the emotional trials of the Ceroba Genocide Fight, this simulator lets you experience her classic early-game encounter featuring feather barrages and carpenter tools.

Move your SOUL inside the combat box using the Arrow Keys. When taking your turn, use Left and Right to browse the action bar: FIGHT allows you to attack using Clover's toy gun slider, ACT lets you interact with Martlet's earnest dialogue, ITEM restores lost health, and MERCY lets you spare her when she tires out. Press Z to confirm menu selections, fire attacks, and advance text; press X to cancel choices or speed through dialogue.

Martlet's combat style reflects her dual role as a royal guard sentry and an enthusiastic amateur carpenter. Her projectile patterns include flying glowing blue feather darts, spiraling carpenter wrenches, falling wooden mallets, and puzzle block formations that drop from the top of the screen. Her feathers often fly in expanding arcs or circle around your SOUL before darting inwards.

The encounter progresses through three distinct difficulty tiers. In the opening stage, Martlet tests your evasion with singular feather volleys and telegraphed wooden hammer tosses. As the battle advances into the intermediate phase, she introduces swirling feather tornadoes that rotate across the perimeter of the box while bouncing wrenches threaten the center. In the climax, puzzle block formations drop from above in staggered tetris-like columns, requiring you to find open gaps before the floor fills with solid obstacles.

Because Martlet is fundamentally gentle and reluctant to harm humans, her dialogue is filled with flustered explanations and second thoughts. By selecting thoughtful ACT options, players can de-escalate the conflict while weaving through her increasingly clumsy construction-themed bullet patterns. Listening to the driving rhythm of her battle theme helps players synchronize their dodging movements with incoming projectile waves.

During carpenter tool phases, watch the rotation of falling wrenches. Unlike feather projectiles that move in straight vector paths, wrenches wobble and arc downward with artificial weight, requiring you to slip underneath them rather than trying to outrun their horizontal trajectory.

Royal Guard Duel Controls

Standard Undertale combat controls apply. Use Arrow Keys to position your heart within safe pockets between feather volleys.

About Martlet and Undertale Yellow

Undertale Yellow is widely recognized as one of the most ambitious and polished fan games ever created, following the journey of Clover, the human child possessing the Yellow SOUL of Justice. Developed over seven years by an extraordinary team led by MasterMax888 and Aero-Artwork, the game introduced Martlet, a blue avian royal guard sentry stationed in Snowdin and the Dunes.

Developer dino7597 brought Martlet's iconic early-game encounter to web browsers, capturing her animated battle sprites, dynamic facial expressions, and her signature battle theme Protocol. Martlet quickly became one of the most beloved characters in the Undertale fandom thanks to her endearing personality, passion for building wooden puzzles, and fierce loyalty to her friends.

The backstory of Martlet highlights her struggle between duty and morality. Appointed to the Royal Guard by Captain Undyne despite her lack of combat aggression, Martlet was tasked with building traps and puzzles to capture humans. However, her gentle nature and absentmindedness constantly lead her to sympathize with Clover rather than arresting them. This internal conflict is reflected brilliantly in her combat dialogue, where she repeatedly checks her sentry manual and questions her own instructions.

The simulator faithfully reproduces her signature bullet choreography: feather volleys that test spatial awareness, falling tools that introduce gravitational arcs, and authentic Undertale Yellow battle interface styling.

Whether you want to relive your favorite moments from Undertale Yellow or practice dodging Martlet's unique carpenter tool attacks without replaying the full RPG, this simulator delivers an authentic and engaging browser experience.

The developer's careful attention to attack cadences and visual tells ensures that every pattern feels fair, rewarding players who pay attention to Martlet's wing gestures and audio cues.

Martlet's Attack Patterns and Features

Encounter Martlet's signature battle mechanics and attack phases:

• Feather Quill Barrages: Radiant blue feathers descend from the top of the arena, fanning out into expanding cone formations.
• Carpenter Tool Hazards: Wooden mallets and metal wrenches tumble into the combat box, bouncing off the floor and spinning across your path.
• Puzzle Block Traps: Grid blocks drop in staggered patterns, testing your ability to find open gaps before the floor fills up.
• Radial Feather Rings: Feathers circle around your SOUL before accelerating inward, requiring precise micro-dodging at the center.
• Swirling Feather Tornadoes: Spiraling vortexes of glowing blue darts orbit around the arena walls, shrinking your available maneuvering space.
• Pacifist ACT Dialogue: Engage in humorous, heartfelt dialogue with Martlet to lower her guard and unlock peaceful victory.
• Faithful Soundtrack: Enjoy the energetic brass and driving rhythm of Martlet's official theme song Protocol.

Sentry Duel Survival Tips

Outsmart the royal guard sentry with these essential tactical tips:

• Keep SOUL Grounded During Tool Drops: Wrenches and mallets bounce upward after hitting the floor; slip underneath them as they peak in their bounce arc.
• Track Feather Cones Early: Martlet's feather quills spread out as they travel; staying near the bottom of the arena gives you wider gaps to slip through.
• Watch Wing Flap Tells: Martlet flaps her wings right before launching radial feather rings; use this visual tell to center your SOUL.
• Do Not Over-dodge Radial Rings: When feathers converge toward the center, make minimal micro-movements rather than large panic dashes.
• Slip Underneath Feather Tornadoes: As swirling feather columns orbit along the borders, rotate clockwise around the center to stay in the eye of the vortex.
• Use ACT Options Every Turn: If pursuing a peaceful outcome, consistently choose ACT options to advance Martlet's internal monologue and reach the spare condition.
• Buffer Attack Slider Timing: If playing offensively, time your Z press just as Clover's gun target aligns with the center crosshair for maximum critical damage.