How To Get Rexosaurus Hatcherini in Plants Vs Brainrots (2025 Guide)

Rexosaurus Hatcherini is a Secret rarity brainrot in Plants Vs Brainrots that generates $4,300 per second and can only be obtained after unlocking the Desert Biome. To get this powerful brainrot, you must complete all 25 Brainrot Invasion waves, then wait for it to spawn on the Treadmill or receive it as a gift from another player. This comprehensive guide will walk you through every step of unlocking the Desert Biome and maximizing your chances of obtaining this coveted Secret brainrot.

Pin it

Key Information Summary

Aspect	Details
Rarity	Secret
Base Income	~$4,300/second
Added In	Story Update (October 18, 2025)
Obtainment Methods	Treadmill spawn, Player gift
Prerequisite	Unlock Desert Biome
Location	Desert Biome exclusive
Fusion Available	No (as of current update)

What is Rexosaurus Hatcherini?

Rexosaurus Hatcherini is one of the most sought-after Secret brainrots in Plants Vs Brainrots, introduced during the Story Update in October 2025. This unique brainrot features a Tyrannosaurus Rex partially emerged from a cracked egg, with its arms, legs, tail, and head visible while the rest of its body remains inside.

As a Secret rarity brainrot, Rexosaurus Hatcherini offers exceptional passive income generation at approximately $4,300 per second, making it a valuable addition to any player's base. However, obtaining this brainrot requires significant effort and strategy, as it's exclusively available in the Desert Biome and has an extremely low spawn rate.

Prerequisites: Unlocking the Desert Biome

Before you can even attempt to obtain Rexosaurus Hatcherini, you must first unlock the Desert Biome. This endgame area represents the current pinnacle of Plants Vs Brainrots content and requires completing the entire Brainrot Invasion storyline.

Understanding Brainrot Invasion

The Brainrot Invasion is a game mode introduced in the Story Update that replaced the previous Hitlist Event. In this mode, you'll defend your garden against increasingly difficult waves of brainrots, each with its own storyline. Here's what you need to know:

• Trigger Frequency: Brainrot Invasions occur every 20-30 minutes
• Wave Structure: 25 total waves with escalating difficulty
• Main Enemies: Five primary brainrot enemies, with Orcalero Orcala as the final boss in wave 25
• Difficulty Scaling: Each wave introduces tougher enemies with more health
• Special Abilities: Invasion brainrots can temporarily destroy your plants

Strategy for Completing All 25 Waves

Successfully completing all 25 Brainrot Invasion waves requires careful preparation and strategy. Here's how to maximize your chances:

Plant Selection

For the later waves, especially waves 20-25, you'll need your strongest plants. Focus on these high-tier options:

• Mango: Excellent DPS with good range
• Shroombino: High damage output with area effects
• King Limone: Premium damage dealer for tough enemies
• Mr Carrot: Reliable damage with good survivability

Base Setup

Optimize your garden layout for maximum effectiveness:

1. Lane Coverage: Ensure all lanes have adequate plant coverage
2. Plant Levels: Maximize your best plants' levels using XP potions
3. Gears: Utilize Frost Grenades and Carrot Launchers for crowd control
4. Placement: Position high-DPS plants strategically to cover multiple lanes

Resource Management

• Cash Reserves: Build up substantial cash reserves before attempting later waves
• Seed Stock: Maintain a good supply of high-tier seeds
• Potions: Keep Lucky Potions and XP potions handy
• Rebirth Benefits: Complete as many Rebirths as possible for Luck bonuses

How to Obtain Rexosaurus Hatcherini?

Once you've unlocked the Desert Biome by completing all 25 Brainrot Invasion waves, you can begin hunting for Rexosaurus Hatcherini. There are two primary methods to obtain this Secret brainrot:

Method 1: Treadmill Spawning

The most common way to obtain Rexosaurus Hatcherini is through the Treadmill (also called the conveyor belt). Here's how it works:

Treadmill Mechanics

• Spawn System: Brainrots spawn on the Treadmill based on their rarity
• Elimination Requirement: Your plants must reduce the brainrot's HP to zero
• Reward System: Whatever brainrot your plants eliminate is what you receive
• Health Scaling: Secret brainrots have significantly more health than lower rarities

Maximizing Treadmill Success

To increase your chances of Rexosaurus Hatcherini spawning and being successfully captured:

• Luck Optimization:
  • Complete Rebirths (50% Luck per Rebirth, max 300% at level 6)
  • Purchase Server Luck game pass
  • Use Lucky Potions (30-minute duration)
• Plant Power:
  • Deploy your highest-DPS plants
  • Ensure plants are at maximum level
  • Use damage-boosting gears and mutations
• Timing:
  • Play during peak hours when more players are online
  • Take advantage of admin events or server boosts
  • Use multiple Lucky Potions back-to-back for extended luck periods

Method 2: Player Gifting

The second method to obtain Rexosaurus Hatcherini is through player-to-player gifting:

Gifting System

• Mechanics: Players who already own Rexosaurus Hatcherini can gift copies to others
• Requirements: Both players must be in the same server
• Limitations: May have restrictions on how many can be gifted per player

Finding Trading Partners

To find players willing to gift Rexosaurus Hatcherini:

1. Join Communities: Participate in Plants Vs Brainrots Discord servers
2. Trade Channels: Look for trading or gifting channels
3. Social Media: Check Reddit, Twitter, and Facebook groups
4. In-game Networking: Build relationships with other players

Maximizing Your Luck for Secret Brainrots

Since Rexosaurus Hatcherini is a Secret rarity brainrot, it has an extremely low natural spawn rate. Maximizing your Luck stat is crucial for obtaining it. Here are the most effective methods:

Rebirth System

Rebirths are the foundation of Luck building in Plants Vs Brainrots:

• Mechanics: Each Rebirth provides a 50% Luck multiplier
• Maximum Level: Level 6 Rebirth provides 300% total Luck bonus
• Additional Benefits: Rebirths also provide 50% Cash generation bonuses
• Strategy: Focus on completing Rebirths as early as possible

Premium Luck Boosters

For players willing to invest, these premium options significantly boost your chances:

Server Luck Game Pass

• Effect: Applies luck bonus to all players on the server
• Duration: Permanent purchase
• Value: Benefits both you and other players, making Secret spawns more frequent for everyone

Lucky Potions

• Duration: 30 minutes per potion
• Effect: Substantially increases luck during active period
• Strategy: Stack multiple potions for extended luck periods
• Timing: Use during active grinding sessions or special events

Additional Luck Factors

Several other factors can influence your luck with Secret brainrot spawns:

• Server Population: Higher player counts may increase spawn rates
• Time of Day: Some players report better luck during specific hours
• Special Events: Admin events or holidays often feature increased spawn rates
• Plant Combinations: Certain plant arrangements may affect spawn mechanics

Desert Biome Specifics

The Desert Biome is where Rexosaurus Hatcherini and other Secret brainrots become available. Understanding this biome's unique characteristics is essential for success.

Biome Characteristics

• Visual Changes: Sandy landscape with cacti decorations
• Enemy Tier: Introduces Tier 2 Brainrots with increased health
• Difficulty: Considered endgame content
• Exclusive Content: Five unique Secret brainrots only available here

Desert Biome Brainrots

Rexosaurus Hatcherini is one of five Desert Biome-exclusive Secret brainrots:

Brainrot Name	Base Income	Special Notes
Rexosaurus Hatcherini	~$4,300/s	T-Rex in egg appearance
El Tacorito	~$4,500/s	Mexican food-themed
Pepito Di Pollo	~$5,100/s	Highest income of Desert brainrots
Meowtronzio	~$4,700/s	Cat-themed with electronic elements
Bangello	~$4,400/s	Explosion-themed design

Desert Biome Strategy

Once you've unlocked the Desert Biome, you'll need to adjust your strategy:

Plant Requirements

• Minimum Power: Secret plants are almost required
• Recommended Plants: Mango, Shroombino, King Limone
• Plant Levels: Maximum levels are essential
• Mutations: Aim for beneficial mutations that increase DPS

Enemy Handling

• Health Management: Tier 2 brainrots have significantly more health
• DPS Focus: Prioritize damage output over defense
• Area Effects: Utilize plants with area damage capabilities
• Support Gears: Frost Grenades and Carrot Launchers become crucial

Advanced Techniques and Pro Tips

For players serious about obtaining Rexosaurus Hatcherini, these advanced techniques can make the difference:

Server Hopping Strategy

• Concept: Switch between servers to find active Treadmill spawns
• Execution: Join servers, check Treadmill, leave if no Secret spawns
• Efficiency: Focus on servers with high player counts
• Tools: Use server lists or Discord server finders

Admin Event Timing

• Monitoring: Follow official social media for admin event announcements
• Preparation: Stock up on Lucky Potions before events
• Participation: Join servers where admins are active
• Benefits: Admin events often feature increased Secret spawn rates

Community Collaboration

• Discord Servers: Join active Plants Vs Brainrots communities
• Information Sharing: Learn from other players' experiences
• Coordinated Efforts: Work with others to increase server-wide luck
• Trading Networks: Build relationships for potential gifting opportunities

Common Mistakes to Avoid

Many players struggle to obtain Rexosaurus Hatcherini due to these common mistakes:

Insufficient Preparation

• Rushing In: Attempting Desert Biome without adequate plant power
• Ignoring Luck: Neglecting Rebirths and luck-boosting items
• Poor Resource Management: Running out of cash during crucial moments

Inefficient Grinding

• Wrong Timing: Playing during low-activity periods
• Single Server: Staying in one server too long without results
• Potion Waste: Using Lucky Potions during inactive periods

Strategic Errors

• Plant Placement: Poor garden layout reducing effectiveness
• Neglecting Upgrades: Failing to level plants and use gears
• Impatience: Giving up too quickly when results don't come immediately

Platform-Specific Considerations

Plants Vs Brainrots is available on multiple platforms, each with unique considerations:

Roblox PC

• Advantages: Better performance, easier multitasking
• Strategies: Use multiple monitors for Discord coordination
• Controls: Keyboard and mouse offer precise control

Roblox Mobile

• Challenges: Smaller screen, potential performance issues
• Adaptations: Simplified garden layouts, touch controls
• Tips: Use stable internet connection to avoid disconnections

Roblox Console

• Considerations: Controller-based gameplay
• Optimization: Adjust settings for performance
• Community: May have different player demographics

Community Resources

Joining the Plants Vs Brainrots community can significantly enhance your chances of obtaining Rexosaurus Hatcherini:

Official Resources

• Discord Server: Join the official Plants Vs Brainrots Discord for real-time discussions, trading, and event notifications
• Twitter/X: Follow @PlantsVsBrainrots for official announcements and update news
• Roblox Group: Join the official Roblox group for community events and perks

Fan Communities

• Reddit: r/PlantsVsBrainrots for player discussions and strategy sharing
• Fandom Wiki: Comprehensive resource for all game information
• YouTube Content: Video guides and gameplay demonstrations
• Facebook Groups: Community trading and discussion groups

Value of Community Resources

• Real-time Information: Get updates on active events and spawn rates
• Strategy Sharing: Learn from experienced players' successes and failures
• Trading Opportunities: Connect with players for potential gifting
• Event Coordination: Organize group efforts during special events

Frequently Asked Questions

How long does it take to unlock the Desert Biome?

The time required varies based on your plant power and strategy. Most players report 1-2 weeks of consistent play to complete all 25 Brainrot Invasion waves, assuming they have adequate plant levels and resources.

What's the best plant for defeating Brainrot Invasion waves?

Mango, Shroombino, and King Limone are generally considered the best plants for later invasion waves due to their high DPS and ability to handle the increased health of Tier 2 brainrots.

Can I get Rexosaurus Hatcherini without completing all 25 invasion waves?

No, Rexosaurus Hatcherini is exclusive to the Desert Biome, which can only be unlocked by completing all 25 Brainrot Invasion waves.

How much luck do I need for Secret brainrots?

While there's no guaranteed number, most players recommend having at least 200-300% luck (from Rebirths) plus using Lucky Potions and the Server Luck game pass for reasonable chances.

Is Rexosaurus Hatcherini worth the effort?

Yes, with its base income of ~$4,300/second and Secret rarity status, Rexosaurus Hatcherini is one of the most valuable brainrots in the game, making it well worth the effort for serious players.

Can I fuse Rexosaurus Hatcherini with other brainrots?

As of the current update, Rexosaurus Hatcherini cannot be fused with other brainrots. However, this may change in future updates.

What's the fastest way to get Rexosaurus Hatcherini?

The fastest method is to complete all 25 Brainrot Invasion waves quickly, maximize your luck through Rebirths and boosters, then grind the Treadmill during Lucky Potion active periods or admin events.

How often do Secret brainrots spawn on the Treadmill?

Secret brainrots have extremely low spawn rates, estimated at less than 1% normally. With maximum luck (300% from Rebirths + boosters), this might increase to 3-5%, but it's still quite rare.

Conclusion

Obtaining Rexosaurus Hatcherini in Plants Vs Brainrots represents one of the game's most challenging but rewarding achievements. This Secret brainrot, with its impressive $4,300/second income generation and unique T-Rex design, is a testament to a player's dedication and strategic thinking.

Success requires a multi-step approach: first, mastering the Brainrot Invasion to unlock the Desert Biome, then optimizing your luck and plant power to finally capture this elusive brainrot. While the journey is demanding, the rewards make it worthwhile for serious players looking to maximize their base's income potential.

Remember to utilize community resources, stay patient during the grind, and continuously optimize your strategy. With persistence and the right approach, you'll eventually add Rexosaurus Hatcherini to your collection and join the elite ranks of Plants Vs Brainrots players who have conquered the Desert Biome.

Call to Action: Bookmark this guide for reference as you progress through Plants Vs Brainrots, and join the official Discord community to connect with other players working toward the same goal. Share your success stories and strategies once you've obtained your own Rexosaurus Hatcherini!