Nubert NEO Fight Simulator

How to Play Nubert NEO Fight Simulator

Prepare to face the most unexpected powerhouse in the Dark World with the Nubert NEO Fight Simulator. In this inventive fan-made boss battle, the humble red blob character Nubert—famously adored by everyone in the Cyber City trash zone—has been fused with the high-tech, cybernetic NEO body frame. This browser-based battle delivers a fast-paced combat encounter featuring authentic party mechanics from Deltarune, pairing Kris and Ralsei against an absurdly buffed, roboticized version of Nubert.

When the battle begins, you manage a two-hero party featuring Kris (90 HP) and Ralsei (70 HP). Each combat turn begins in the command menu, where you decide how your characters will allocate their actions. Kris serves as the primary physical damage dealer through the FIGHT command, while Ralsei provides critical support magic and defensive options through the SPELL and ACT sub-menus. As you input commands, you can also assign DEFEND to reduce incoming damage and harvest extra Tension Points (TP) for the upcoming turn.

After locking in your party actions, Nubert NEO initiates his attack round. A combat arena appears on screen, and you take direct control of the Red SOUL using your keyboard. Nubert NEO unleashes waves of energy projectiles themed around classic playing card suits, high-speed homing blasts, and neon trajectory hazards. By weaving through tight bullet patterns and deliberately grazing projectile edges, you will accumulate TP on the gauge at the left of the screen, empowering Ralsei to cast potent spells like Heal Prayer or work toward a peaceful resolution via Pacify.

Nubert NEO Fight Simulator Controls

What Is Nubert NEO Fight Simulator?

In Deltarune Chapter 2, Nubert is a minor yet universally beloved comedic NPC found resting in the trash zone of Cyber City. Despite having no limbs, armor, or combative dialogue, every Darkner in the realm holds Nubert in high esteem, giving rise to his iconic motto: "Everybody loves Nubert." Meanwhile, the NEO body represents the pinnacle of ancient Lightner artistic ambition—an armored chassis originally created by Mettaton in the Light World and later weaponized by Spamton NEO in the Dark World.

The Nubert NEO Fight Simulator asks a hilarious yet mechanically challenging question: what would happen if Nubert took over the NEO robotic frame? Created as an ambitious Deltarune community fan project, this encounter gives Nubert a muscular, cybernetic silhouette equipped with heavy mechanical gauntlets, glowing thrusters, and immense kinetic strength while retaining his signature smiling red blob head. The contrast between his relaxed demeanor and punishing bullet-hell attacks makes for one of the most memorable novelty boss battles in the fandom.

Beyond the comedic premise, the game offers a faithful recreation of Deltarune's tactical combat engine. It features dynamic party health tracking, accurate TP generation through proximity grazing, animated attack bars with critical-strike timing, and full support for both violent (HP depletion) and non-violent (ACT and SPARE) victory routes. It gives players a chance to experience a complete, high-intensity boss encounter directly in any web browser without needing to install external software.

Nubert NEO Battle and Gameplay

The encounter against Nubert NEO is structured around a 2000 HP combat pool and a dynamic MERCY percentage system. Depending on your personal playstyle, you can choose between two distinct strategies to resolve the confrontation: a direct physical assault or a tactical pacifist sequence.

If you choose the offensive path, you must optimize your timing with the FIGHT command. When Kris or Ralsei attacks, a cursor glides across the horizontal strike meter. Pressing the Z key at the exact center awards a critical hit, dealing substantial damage to Nubert NEO's cybernetic armor. Combining consistent critical strikes with defensive party management will gradually whittle down his 2000 HP until his robotic frame collapses.

If you prefer the pacifist route, your focus shifts toward the ACT and SPARE commands. Engaging in specialized ACT dialogues allows Kris and Ralsei to flatter, confuse, or inspect Nubert NEO, progressively boosting his MERCY gauge. Once the gauge reaches 100%, or when Nubert NEO becomes tired from prolonged combat, Ralsei can expend 16% TP to cast Pacify, instantly putting the mechanized boss to sleep and securing a peaceful victory. Balancing your turn economy between healing damaged allies and building mercy is the central challenge of this playstyle.

Nubert NEO's attack roster features complex geometric patterns. His signature attacks include rotating diamond generators that shoot spinning projectiles inward, sweeping club clusters that detonate into bouncing shards, and spade volleys that track the SOUL's horizontal position. Because Nubert NEO possesses high attack power (dealing 8 to 15 damage per hit), surviving without Ralsei's Heal Prayer requires disciplined movement and quick pattern recognition.

Tips for Beating Nubert NEO Fight Simulator

• Prioritize Ralsei's Survival: Ralsei has only 70 maximum HP compared to Kris's 90 HP, making him vulnerable to being downed in two or three consecutive hits. Always assign DEFEND to Ralsei on turns where you anticipate dense projectile waves, as defending reduces incoming damage and preserves your healing capability.
• Graze the Diamond Generators: The diamond-shaped projectile generators emit slow-moving outer pulses before releasing high-speed lasers. Position your Red SOUL along the outer perimeter of these shapes to safely farm Tension Points (TP) without putting yourself directly in the firing corridor.
• Use Focus Movement with X Key: When dodging the splitting club attacks, holding down the X key halves your soul's velocity. This prevents oversteering into stray secondary bullets that scatter unpredictably off the arena boundaries.
• Time Your Attack Meter Strikes: Hitting the exact center of the strike bar with Kris deals nearly double the damage of an off-center strike. Practice your visual timing on the cursor rather than rushing your button presses, as high-damage turns significantly shorten the overall length of the battle.
• Bank TP for Emergency Heal Prayers: Never let your TP meter sit at maximum without purpose, but avoid wasting it on minor scratches. Keep at least 32% TP in reserve so that Ralsei can immediately cast Heal Prayer if Kris or Ralsei takes a critical hit during complex attack phases.