Catch a Monster Update 0.38 Guide: Thunder Claw Evolution, Beatopus Boss, Codes, and More!

Catch a Monster has received another weekly update, bringing plenty of new content for players to explore. Update 0.38 introduces the long-awaited Thunder Claw Evolution, a brand-new world boss called Beatopus, limited-time event rewards, and several quality-of-life improvements that make progression smoother. On top of that, players can now view evolution recipes directly in-game, redeem two new codes, and take advantage of improvements to dungeons and Endless Spire. Here’s everything you need to know about the latest update.

Everything Added in Update 0.38

This update includes several new features and gameplay improvements, including:

• Thunder Claw Evolution Event
• Thunder Claw’s new evolution, Divine Claw
• New world boss, Beatopus
• Boss Killer Achievement
• New Pet Collection Quest
• Evolution Recipe menu
• Team Loadout feature for Dungeons
• Pet Feed quality-of-life improvements
• Endless Spire balance adjustments
• Dungeon Shop item rate adjustments

Whether you’re progressing through the mid-game or focusing on endgame content, this update offers plenty of reasons to log in.

New Catch a Monster Codes

Don’t forget to redeem the latest codes before they expire:

• Beatopus
• Massglaw

These codes typically provide free rewards that can help you progress faster.

Thunder Claw Evolution Event Explained

The main event in Update 0.38 is centered around Thunder Claw. During the event, players earn Activity Points by completing different activities throughout the game. Here’s how many points each activity rewards:

• Defeat a Monster: 1 Point
• Defeat a Boss: 5 Points
• Clear a Rift: 5 Points
• Complete a Dungeon: 30 Points

As your Activity Points increase, you’ll unlock milestone rewards. New rewards become available approximately every 3,000 points. The final milestone is reached at 75,000 points, rewarding players with a powerful Mythical gear item.

Event Tasks and Extra Rewards

Alongside the point system, the event also includes a separate Task tab filled with optional missions. Some of the available tasks include:

• Hatch Eggs
• Defeat Bosses
• Infuse Pets
• Complete other in-game objectives

Completing these tasks grants additional rewards.

• Complete 5 tasks to receive Bloodmoon Berry Fragments.
• Complete 7 tasks to earn a Mythical Chest containing a random S-Rank pet.

Since these rewards are separate from the Activity Point milestones, it’s worth completing both whenever possible.

How to Evolve Thunder Claw into Divine Claw

Thunder Claw can now evolve into Divine Claw, giving it stronger abilities and new passive effects. One of the best additions in this update is the new Recipe button. Every monster that has an evolution now lets you view its required materials directly inside the game, making farming much easier.

To evolve Thunder Claw, you’ll need:

• 12 Drums
• 30 Refined Ground Gems

Drums are obtained by defeating the new Beatopus boss.

After collecting all the required materials, you’ll have roughly an 18% chance to successfully evolve Thunder Claw into Divine Claw.

Because the success rate isn’t guaranteed, it’s a good idea to gather extra materials before attempting multiple evolutions.

Where to Find Beatopus

Beatopus is the newest world boss added in Update 0.38.

You can find it on Nova Coast, where it serves as one of the toughest encounters currently available.

The boss has over 2 trillion HP, making it difficult to defeat alone. Teaming up with other players is highly recommended.

Defeating Beatopus rewards players with:

• Boss Egg
• Drum Evolution Material

Since Drums are required for Divine Claw, you’ll likely need to farm this boss multiple times.

Divine Claw Skills

Divine Claw comes with several powerful new abilities designed for boss fights.

Divine Energy Burst

This skill grants 70% Damage Reduction while dealing damage to enemies directly in front of the monster.

It provides excellent survivability during difficult encounters.

Rock Road

Rock Road launches a line of stone spikes that deal heavy damage to enemies caught in their path.

It’s especially useful against groups of monsters or enemies standing in a straight line.

Sacred Beetle (Passive)

Divine Claw’s passive ability provides several valuable bonuses:

• Immune to Stun effects
• Pet damage against Bosses increased by 35%

Although Divine Claw attacks more slowly than some other monsters, its boss damage bonus makes it an excellent choice for PvE content.

Beatopus Skills

The new Beatopus boss also has its own dangerous attacks.

Deadly Sonic Wave

An area-of-effect attack capable of damaging multiple targets at once.

Ripple Guard

Creates a protective shield around its team, allowing the boss and nearby allies to survive longer during battle.

Evolution Recipe Feature

Another welcome addition is the new Evolution Recipe system. Instead of searching online, players can now simply open a monster’s information page and press the Recipe button to view:

• Required evolution materials
• Material quantities
• Evolution requirements

This quality-of-life feature makes preparing for future evolutions much more convenient.

Tips to Complete the Event Faster

If you want to finish the event efficiently, consider these strategies:

• Prioritize Dungeons since they award 30 Activity Points each.
• Defeat Bosses whenever possible for extra points and valuable materials.
• Complete every available Event Task.
• Farm Beatopus regularly to collect Drums.
• Save your Refined Ground Gems so you’re ready to evolve Thunder Claw once enough Drums have been collected.

Following these tips will help you reach the 75,000-point milestone much faster.

Update 0.38 delivers a solid amount of new content for Catch a Monster players. The Thunder Claw Evolution, Beatopus world boss, limited-time event, new redeem codes, and in-game Evolution Recipe system all make progression more rewarding and convenient. If you’re aiming to strengthen your team or unlock Divine Claw as soon as possible, focus on farming Beatopus, completing event tasks, and earning Activity Points before the event comes to an end.