How To Get Rexosaurus Hatcherini in Plants Vs Brainrots

The following guide explores how you can get Rexosaurus Hatcherini in Plants Vs Brainrots, and how much it earns.

Plants Vs Brainrots (Source: Roblox Corporation)

Table of Contents

Rexosaurus Hatcherini in Plants Vs Brainrots is a new Secret rarity Brainrot that arrived as part of the Story Update of the game. This update made its way into the game on October 18, 2025, and brought with it five new Secret rarity Brainrots in total, alongside a brand new biome. You will find Rexosaurus Hatcherini within this biome. It’s a Brainrot that resembles a Tyrannosaurus Rex that hasn’t fully hatched from its egg yet. It’s tail, head, arms and legs have all emerged from the shell, while it’s body is still cocooned inside it. Here’s the complete guide on how you can get it, and how much it earns for you.

Getting Rexosaurus Hatcherini in Plants Vs Brainrots

There are two distinct ways in which you can acquire this Brainrot in the game. They are:

Get one from the Treadmill inside the Desert Biome.
Get it as a gift from another player.

From the Desert Biome

The first method is the more practical approach of grabbing this Secret Brainrot. However, it involves quite a bit of grinding. You’ll first have to unlock access to the Desert Biome if you want to get Rexosaurus Hatcherini this way. To get access to the biome, you will need to get past all 25 story missions. There simply aren’t any shortcuts that you can take advantage of here. Each mission also gets progressively more challenging, and they’ll test your defensive abilities. Picking the right plant to defend against the waves is key. This forces you to spend some time learning how each wave progresses and which of the plants in your garden can counter the present wave.

Even if you fail the first few times, don’t worry. You can always retry each mission again in less than an hour after your failure. Also, you’ll walk away with some rewards even when you fail. So, there’s simply no downside to failing and learning here. Once all 25 missions are done, simply wait for the Rexosaurus Hatcherini to appear at the Treadmill.

Gifted By Another Player

A less probable route of grabbing the Brainrot is if another player gifts it to you. However, for that to happen, you might have to offer another Secret rarity Brainrot to the player in return. Even so, most players wouldn’t be keen on parting from such a rare Brainrot from their own collection. So, we suggest trying the first method.

How Much Does Rexosaurus Hatcherini Earn?

Once you acquire the Secret Brainrot, it will begin earning around $4.3k per second for you. While that isn’t close to the highest earnings from a Secret rarity Brainrot, it’s still a significant amount that tends to add up in a few seconds. So, Rexosaurus Hatcherini can contribute significantly to your overall cash flow.