Pets are the fastest way to power up in +1 Muscle Evolution. They sit beside your character as visible companions and hand you stat boosts and win multipliers, and you get them by hatching eggs bought in the lobby with wins. The catch is the price ladder, which climbs from a trivial 100 wins to a brutal 125 billion.
Quick answer: Head to the eggs in the lobby, hatch the most expensive egg you can afford, and equip the pets you pull. Every egg except the 67 Egg is bought with wins; the 67 Egg costs 79 Robux.
Every egg and its cost
All eggs live in the lobby. Six are paid for with wins, and one is Robux-only. Here is the full price list.
| Egg | Cost | Currency |
|---|---|---|
| Basic Egg | 100 | Wins |
| Better Egg | 25,000 | Wins |
| Rainbow Egg | 1,000,000 | Wins |
| Magma Egg | 150,000,000 | Wins |
| Circus Egg | 7,500,000,000 | Wins |
| Coconut Egg | 125,000,000,000 | Wins |
| 67 Egg | 79 | Robux |
How to farm wins for eggs
Wins are the main currency behind every egg, and you earn them by working through the game’s stages. Clear a stage, defeat the enemies inside it, and stand on the reward platforms to bank your wins. The higher the stage you can beat, the faster your win count grows, which is what unlocks the pricier eggs.
Because the top eggs run into the billions, plain stage clearing takes a long time on its own. Equipping strong pets early speeds this up, since their multipliers make later stages easier to finish. If you want a shortcut, the Robux store packs (below) add extra wins on top of what you farm.
The full pet roster by egg
Each egg tier pulls from its own themed lineup, so the pet you get tells you which egg it came from. The Robux-only 67 Egg holds the showpiece pets, including the Dominus and the Huge Money Wyvern.
| Egg | Pets |
|---|---|
| Basic Egg | Dog, Cat, Bunny, Bee |
| Better Egg | Monkey, Koala, Panther, Tiger, Parrot |
| Rainbow Egg | Magic Cat, Mushroom Bear, Ruin Butterfly, Magic Dog, Magic Dragon |
| Magma Egg | Lava Dog, Lava Bunny, Lava Hedgehog, Lava Bat, Lava Wyvern |
| Circus Egg | Circus Elephant, Circus Tiger, Circus Chicken, Circus Parrot, Kitsune |
| Coconut Egg | Fish, Flamingo, Shark, Pirate Parrot, Pirate Octopus |
| 67 Egg | Dominus, Royal Dog, Huge Money Wyvern |
The rarest pets to hunt for
Two pets sit at the bottom of the drop table at just a 0.1% hatch rate each, which makes them the hardest pulls in the game.
- Kitsune — a rare pull from the Circus Egg.
- Pirate Octopus — a rare pull from the Coconut Egg.
At 0.1%, expect a long stretch of hatching before either one appears. Since those eggs cost billions of wins per hatch, chasing them takes real patience.
How pet multipliers stack
Equipped pets add their multipliers together rather than replacing one another. A 1.1x pet combined with a 1.3x pet produces a 1.4x total boost, so filling your active pet slots with strong pets is always better than running a single one.
Tip: This stacking is why unlocking extra pet slots matters. More equipped pets means a bigger combined multiplier, which directly speeds up how quickly you clear stages and bank wins.
Robux store packs for extra wins and slots
Three Robux packs are available for players who want to move faster. The Starter, Pro, and Ultimate packs grant extra wins, added health, and more pet slots, which together shorten the grind toward the higher-cost eggs and let you run a larger stack of multipliers at once.
The one egg you cannot buy with wins at all is the 67 Egg, which costs 79 Robux and holds the game’s flashiest pets. Everything else comes down to farming stages, hatching the best egg you can afford, and equipping pets until your multiplier is high enough to push into the next tier.
