Unveiling the Ultimate Challenge: The Hardest Bosses in Undertale Ranked!

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Summary

  • Undertale features some of the most challenging boss fights in gaming, such as Asgore Dreemurr and Undyne the Undying.
  • Bosses like Mettaton EX and Mad Mew Mew provide hard battles with extremely creative mechanics.
  • The final boss of the Genocide Route, Sans, is considered one of the hardest video game bosses ever due to his powerful attacks and challenging mechanics.

Since 2015, the video game Undertale has been captivating gamers worldwide with its charming characters, thought-provoking narrative, clever satire of the RPG genre, and innovative mechanics. Particularly noteworthy is its unique gameplay, which has enabled creator Toby Fox to design some of the most outstanding and intelligent boss fights in the gaming industry.

In the cherished indie game, Undertale, while some boss battles can be amusing or heart-wrenching, others have gained notoriety for their high difficulty level, particularly those that occur during the Genocide Route. Here are the most challenging bosses you’ll face throughout the entire journey.

8. Photoshop Flowey

A Creepy Giant Boss With A Collection Of Confusing Attacks

Individuals who’ve encountered Photoshop Flowey, the final boss in the Neutral Route, are instantly unnerved by his strikingly realistic appearance and chilling cackle. Moreover, the battle against him can be particularly challenging, often proving to be a daunting task for beginners.

In a different phrasing: Flowey’s attacks come at an unexpected pace and are tough to dodge. To make matters worse, the repeated shifts in the battleground, along with his unsettling appearance and the chaotic music, create quite a disorienting experience for the player. However, this tough battle is absolutely worth it as its conclusion ranks among the most emotionally rewarding moments in the entire game.

7. Asriel Dreemurr

The True Final Boss Of The Game Presents A Formidable Challenge

Players completing the full True Pacifist Route of Undertale will uncover Asriel Dreemurr as the true final boss, a character deeply rooted in the story with a heart-wrenching backstory. Consequently, this implies that he presents the ultimate challenge in the game, explaining why defeating him is particularly tough.

In this rephrased version, Asriel assaults the player with an unyielding barrage of potent moves that he seldom signals ahead of time, such as colossal star-shaped meteors, electric pillars, and rapid-fire finger projectiles. Despite this, Asriel’s battle isn’t as tough as others in the game due to its integration of emotional narrative moments which could be less impactful if the player became aggravated while trying to vanquish him.

6. Mettaton EX

An Extravagant Celebrity With Tricky TV-Inspired Abilities

Mettaton, undeniably, is among the strangest yet adored characters within the realm of Undertale, making it unsurprising that he takes center stage in one of the most innovative but challenging battles found throughout the game. Given his status as the sole TV celebrity in the Underground, the battle against Mettaton EX is entirely centered around the concept of television.

In essence, this has two parts: To triumph, the player needs to persistently engage with the character and simultaneously boost TV viewership, while experiencing a variety of baffling skills employed by Mettaton EX that align with the theme, such as resizing the player’s screen or abruptly reversing attacks. This leads to an unexpectedly challenging yet gratifying encounter featuring a charming character and captivating background tunes. Regrettably, the opposite is true for Mettaton NEO from the Genocide Route, who unfortunately succumbs with just one strike.

5. Mad Mew Mew

A New Boss That Was Made Specifically For The Nintendo Switch

Mad Mew Mew is a freshly introduced optional adversary exclusive to the Nintendo Switch edition of Undertale. Following the defeat of Mettaton EX, players have the opportunity to engage her within the Dog Shrine. Interestingly, her battle offers both amusement and difficulty. The combat style is tailored around the Nintendo Switch, where the player’s heart is separated into two sections (one blue, one red), which can be managed independently using each Joy-Con’s analog stick.

As a gamer, let me tell you, the sneaky mechanic ramps up the battle against Mad Mew Mew from tricky to truly testing. But To make matters even more challenging, she can transform my screen into a tiny rectangle or an octagon on a dime. This screen reshuffle leaves me scrambling to navigate within the severely limited space.

4. Muffet

An Adorable Boss With An Intense Platforming Challenge

Regardless of whether some fans view her as a sub-boss, there’s no arguing that Muffet stands out among the most impactful characters in the entire game. Similar to other major opponents, this charming spider-themed baker possesses a unique quirk; she has the ability to alter the color of the player’s heart and compel them to maneuver it along only three straight paths.

Making a minor adjustment significantly alters the battle’s complexity since confining the heart’s movement restricts the player from maneuvering freely and dodging Muffet’s attacks. Initially, she appears straightforward, utilizing diverse pastries as ammunition. However, she swiftly intensifies the challenge by navigating across the screen and summoning her spider pet, which the player must evade by quickly jumping over the purple lines. This intense encounter is thrilling yet engaging, contributing to Muffet’s widespread popularity among fans.

3. Asgore Dreemurr

A Tragic Character That Put Up A Great Fight

Towards the finale of the Neutral Path, players encounter Asgore Dreemurr, the King of the Underground, who is married to Toriel and is the father of Asriel. In a surprising turn of events, he removes the Mercy Button, indicating that he must be fought without mercy. This minor change transforms the battle into a poignant one, and the touching background music intensifies this sad atmosphere.

In a manner similar to his family, Asgore employs a strategy where he unleashes a torrent of fireballs that are hard to dodge, quickly filling the screen with projectiles. It’s as if he’s a boss from a frantic shoot ’em up game. Moreover, he can assault using his trident, which changes color between orange and light blue. This requires the player to stay alert, either remaining stationary or swiftly moving based on its color. Despite the intense difficulty, this encounter is one of the most impactful and emotional in the entire game.

2. Undyne The Undying

A Relentless Battle Against A Hero That Intentionally Punishes The Player

Leading the Underground’s Royal Guard makes it expected that the battle against Undyne in the Neutral Route can be challenging. However, her counterpart from the Genocide Route, famously known as Undyne the Undying, presents an even greater difficulty, which has earned it a reputation as one of the most formidable challenges within the game Undertale.

In Undyne’s battle, the crucial feature is Shield Mode, where a shield safeguards the player from harm but immobilizes them at the same time. This demands that players always be vigilant of their surroundings and quickly adjust directions to dodge Undyne’s swift barrage of arrow attacks. Moreover, she can switch back to her Red Mode, continuing her aggressive assault with spear-like projectiles. It’s worth noting that this battle is particularly challenging since it’s exclusive to the Genocide Route, a path that consistently penalizes players for their harmful actions.

1. Sans

The Most Famous Undertale Boss Is Also The Hardest One

Sans, undeniably, stands out as the most renowned and emblematic character from Undertale. This is not merely because of his amusing appearance and humorous behavior, but also due to the epic battle he leads and the fact that he serves as the final adversary in the infamous Genocide Route. In other words, he represents both the ultimate challenge and the ultimate consequence for this route.

This battle is ideal for those who have thoroughly grasped the intricacies of the game, and it certainly demonstrates that: Sans can assault the player by conjuring colossal bones, firing rapid-speed laser blasts, swiftly altering the screen with a blink, and even manipulating gravity by transforming their heart into Blue Mode. The essence of this battle lies in patience, as the player must evade most of his attacks and sustain minimal damage, eventually striking him fatally with a single hit at the climax. Needless to say, this is more easily said than achieved, and it’s clear why Sans remains widely recognized as one of the most challenging video game bosses ever conceived.

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2025-03-29 08:39