NEO: The World Ends with You (NEO TWEWY)

How to Beat Phasaurus Rex (Boss) | Boss Fight Guide

NEO TWEWY Phasaurus Rex.png

This is a guide to beating Phasaurus Rex (Boss) in NEO: The World Ends with You (NEO TWEWY). Learn about Phasaurus Rex (Boss)'s attack patterns, weaknesses, and tips and strategies for defeating them.

Phasaurus Rex (Boss) Basic Information


No. 047 Noise Group NEO TWEWY Noisepedia - Phasaurus Rex (Boss) Noise Type.png
NEO TWEWY Noisepedia - Phasaurus Rex (Boss).png
A nefarious Noise that's evolved to learn how to use its tail as a weapon. Be especially careful when it goes on a rampage as its rage makes it extra quick on its feet
Location W2D5 (Boss Noise, Story)


HP 13000
PP 428
EXP. 240
NEO TWEWY - Ice Icon.png Ice

NEO TWEWY - Water Icon.png Water

The data shown is set on Normal Diffculty.

Drop Rates

Easy Drop: 5,000 Yen
Rate: 12.00%
Normal Drop: Fuel to the Fire
Rate: 12.00%
Hard Drop: Orichalcum
Rate: 4.00%
Ultimate Drop: Rex
Rate: 0.20%

The data shown is on 1x Drop Rate.

Phasaurus Rex (Boss) Attacks and Abilities

Tail Swing

NEO TWEWY Phasaurus Rex Tail.jpg

The Phasaurus Rex has a mean tail swing that covers a wide radius around it. The tail flashes red to signal when the Phasaurus Rex is about to tail swing.


NEO TWEWY Phasaurus Rex Rampage.jpg

The Phasaurus Rex charges forward in a rampage and consumes a player it comes into contact with, knocking them out of battle for a period of time.


If you're under the Phasaurus Rex and it steps in any direction, you will take damage.

Best Pins for Phasaurus Rex (Boss)

Jealous Rage IconJealous Rage
Gorgeous Gemstone IconGorgeous Gemstone
AkaFuji Blaze IconAkaFuji Blaze
Freestyle Launcher IconFreestyle Launcher

Affinity Weakness to Ice

The Phasaurus Rex's attacks are all powerful, close-range attacks, so it's best to attack it from long-range. The Phasaurus Rex has an Affinity weakness to Ice Pins, so having a long-range Ice Pin like Freestyle Launcher is highly recommended.

Other Long Range Pins

Gorgeous Gemstone is recommended because it doesn't miss and has the chance to entomb the Noise. Jealous Rage can also be utilized, as it deals powerful damage but is slow to charge up, but that's fine in this case due to the Phasaurus Rex being slow as well. AkaFuji Blaze can be used to deal extra damage by burning the target.

Tips & Strategies for Beating Phasaurus Rex (Boss)

Strategy Checklist
CheckmarkGo far when tail flashes red

CheckmarkDefeat frog Noise first

Go Far When it Signals Attack

The Phasaurus Rex's main attacks are powerful but easy to dodge from a distance. The tail flashes red to signal a tail swing, so when it does, immediately exit its vicinity, as to not take heavy damage. Additionally, dodge sideways when it charges forward, so that it doesn't eat and knock your teammate out of battle.

Defeat Frog Noise First

The Phasaurus Rex initially is accompanied by 6 Frog Noise. If left unattended, these frogs can become a nuisance that change the course of the battle via disrupting your targeting or knocking you into the path of the dinosaur. Defeat these Frog Noise first, while avoiding attacks from the Phasaurus Rex.

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