The Coins are back for a second round in Pet Simulator 99. The Plant & Combine update went live on August 1, 2026, expanding the Pets vs. Coins event with a new crafting machine, pet variants, a diamond-themed egg, and a fresh Rebirth tier. It also adds a wave of limited pets tied to combining, bosses, and the leaderboard race.
Quick answer: Feed pets into the new Combine-o-Matic to climb from a Gift up to Huge and Titanic pets, complete all three Garden Missions after Rebirth 6 to unlock Super Rebirth, and spend Diamonds on the Diamond Egg for the Diamond Penguin and the ultra-rare Titanic Diamond Capybara.
New core systems in Plant & Combine
Four systems form the backbone of this update. The Combine-o-Matic is the headline addition. You feed pets into it to merge weaker ones into stronger versions, working up the chain from a Gift all the way to a Titanic. Sunflower Gifts can also be fed in to start crafting.
Garden pets can now hatch as Variants in Gold, Shiny, and Rainbow forms. The rarest variants hit up to 5x harder, and any Garden Egg can produce them. The Diamond Egg is a separate purchase paid for with Diamonds, and once it is gone it does not return. Super Rebirth pushes progression past Rebirth 6 into a tougher biome for bigger rewards.
| System | What it does | How to access |
|---|---|---|
| Combine-o-Matic | Merges pets up the chain toward Huge and Titanic | Feed pets or Sunflower Gifts into the machine |
| Pet Variants | Gold, Shiny, and Rainbow versions, up to 5x damage | Hatch from any Garden Egg |
| Diamond Egg | Hatches Diamond Penguin and rarer diamond pets | Spend Diamonds; limited availability |
| Super Rebirth | Advances past Rebirth 6 into a tougher biome | Reach Rebirth 6, finish all Garden Missions |
The Diamond Egg can hatch the Diamond Penguin, the Huge Diamond Penguin, and the Titanic Diamond Penguin, plus the ultra-rare Titanic Diamond Capybara.
How to unlock Super Rebirth
Every limited pet and where to get it
The Gargantuan Rose Wolf returns and drops from the Coin Bosses, but only after you reach Rebirth 6. Stacking Better Luck and Rain potions improves your odds. The rest of the limited pets are split across the Combine-o-Matic, bosses, eggs, and the leaderboard contests.
| Pet | Tier | Source |
|---|---|---|
| Rose Wolf | Gargantuan | Coin Bosses (Rebirth 6 required) |
| Blossom Kitsune | Titanic | Combine-o-Matic |
| Chili Chinchilla | Titanic | Coin Bosses |
| Zucchini Zebra | Titanic | League and Leaderboard |
| Diamond Penguin | Titanic / Huge | Diamond Egg |
| Diamond Capybara | Titanic | Diamond Egg |
| Garlic Chick | Huge | Combine-o-Matic |
| Tomato Turtle | Huge | Combine-o-Matic |
| Broccoli Dino | Huge | Combine-o-Matic |
| Artichoke Armadillo | Huge | Coin Bosses |
| Leek Lizard | Huge | Garden Eggs |
| Beet Beaver | Huge | League and Leaderboard |
Eight fresh garden pets also join the collection. Tougher pets deal more damage to the coins, with the buttery Corn Minotaur guarding your lanes and the Wistera Wyvern sitting at the top of the roster.
Coin Bosses and Garden Eggs
Defeat enough coins and a Coin Boss storms your garden. Each boss is harder than the last and drops richer rewards, running from the Huge Artichoke Armadillo up to the Titanic Chili Chinchilla and the Gargantuan Rose Wolf. Rebirthing repeatedly unlocks the rarest bosses. Every boss you beat also drops a Sunflower Gift, which can hand out the Sunflower Hoverboard and Trading Booth, or be fed into the Combine-o-Matic.
Four brand-new Garden Eggs join the rotation, and the egg ladder now climbs to 12. You level the Upgrade Machine to open each egg, with the best pet hidden inside the final one.
Progression tools, tokens, and free helpers
Several machines and items speed up your run. The Fuse Machine turns duplicate units into faster level-ups. The Boost Machine sells temporary boosts for coins. The Upgrade Machine now carries 20 tiers covering damage, coins, crops, and luck, and the Plasma Seed grows chests packed with coins as the richest crop in the garden.
| Item or helper | Effect |
|---|---|
| XP Tokens | Instantly level any garden defender |
| Sunflower Boosts | 10%, 20%, or 30% more Sunflowers from breakables |
| Bloom Tokens | Breakable kills count 2x, 3x, or 4x toward Coin Bosses |
| Auto Upgrade | Buys your upgrades automatically (free) |
| Auto Harvest | Claims Sunflowers from crops automatically (free) |
Both Auto Garden helpers are completely free, so you can leave upgrades and harvesting running without paying Robux.
League and Boss Leaderboard rewards
Two contests run alongside the event. The Garden League crowns whoever defeats the most Coin Bosses, and every Huge, Titanic, and Gargantuan reward you earn also adds to your score. The Boss Leaderboard works the same way, rewarding boss takedowns and pet wins. Both hand out variants of the Zucchini Zebra and Beet Beaver based on placement.
| Placement | Garden League | Boss Leaderboard |
|---|---|---|
| #1–3 | Rainbow Shiny Titanic Zucchini Zebra | Rainbow Shiny Titanic Zucchini Zebra |
| #4–10 | Rainbow Titanic Zucchini Zebra | Golden Shiny Titanic Zucchini Zebra |
| #11–25 / #11–100 | Golden Titanic Zucchini Zebra | Rainbow Titanic Zucchini Zebra |
| #101–500 / #251–500 | Rainbow Huge Beet Beaver | Golden Titanic Zucchini Zebra |
| Lower tiers | Golden and standard Huge Beet Beaver | Titanic Zucchini Zebra, then Huge Beet Beaver |
Exclusive egg and packs
The limited-time Mega Thorn Egg hands you a pet and a matching placeable unit with each hatch, with the Huge Corn Minotaur and Titanic Wistera Wyvern as its top pulls. The Mushroom Pack bundles three Mega Thorn Eggs, Tier-II Garden Blooms, three Sunflower Gifts, a Divine Crop Seed, three Exclusive Eggs, and a stack of Mega Chests. This week’s Forever Pack headlines the Huge Wistera Wyvern and keeps the Gargantuan Capybara and Titanic Jewel Peacock. Full details are posted on the BIG Games developer blog.
Because the Diamond Egg and the event packs are limited, they will not return once the Plant & Combine event ends. If you want the Diamond Capybara or the top leaderboard variants, prioritize boss runs and combining while the event is live.
