The Common Egg is the main way to collect pets in Murder Mystery 2. Pets are cosmetic companions that trail your character during matches. They give no combat or gameplay edge, but they are collectible and split across several rarities, from Common up to Godly. Right now, the Common Egg is the single source for these companions, and it holds 21 pets in total.
Quick answer: Buy the Common Egg from the in-game shop for 1,000 Coins or 100 Diamonds. Each purchase gives one random pet, and repeated buys are the only way to fill out the collection.
How to buy the Common Egg
The Common Egg arrived with Season 1 and took the place of the older Pet Box. It remains the standard way to unlock starter pets along with their upgraded Fire and Chroma Fire forms. You can pay with either currency, so free-to-play players can grind Coins or spend premium Diamonds instead.
- Cost: 1,000 Coins or 100 Diamonds per egg.
- Result: one random pet from the Common Egg pool each time.
- Where: the in-game shop, under the pet section.
Common Egg drop rates and pet rarities
Every open pulls one of seven base pets. The Common companions appear most often, while the Bat sits at the bottom of the odds. Here is the full breakdown of what each base pet is worth and how likely it is.
| Pet | Rarity | Drop Chance |
|---|---|---|
| Cat | Common | 60% |
| Dog | Common | 60% |
| Bunny | Common | 60% |
| Pig | Uncommon | 60% |
| Fox | Uncommon | 25% |
| Bear | Rare | 10% |
| Bat | Legendary | 5% |
Cat, Dog, and Bunny are the three Common pets and land in your inventory the most. Pig and Fox are the Uncommon options, the Bear is the sole Rare pet, and the Bat is the rarest standard pull with the lowest published rate.
Fire and Chroma Fire variants explained
Each of the seven base pets has two upgraded forms. That is what brings the total to 21. The Fire version of any pet counts as Godly, and the Chroma Fire version counts as Chroma Godly. So the collection breaks down into 7 base pets, 7 Fire pets, and 7 Chroma Fire pets.
| Base Pet | Base Rarity | Fire Variant | Chroma Fire Variant |
|---|---|---|---|
| Cat | Common | Godly | Chroma Godly |
| Dog | Common | Godly | Chroma Godly |
| Bunny | Common | Godly | Chroma Godly |
| Pig | Uncommon | Godly | Chroma Godly |
| Fox | Uncommon | Godly | Chroma Godly |
| Bear | Rare | Godly | Chroma Godly |
| Bat | Legendary | Godly | Chroma Godly |
Note: the drop rates for the Fire and Chroma Fire forms have not been made public, so treat them as rarer pulls without a confirmed percentage.
The Bat is the only pet that flies
There is one behavior that sets the Bat apart. The Bat and its Fire and Chroma Fire versions fly alongside your character. Every other pet in the egg hovers just above the ground and follows behind you. If you want a companion that actually flies, the Bat family is the only choice.
How to earn Coins for the Common Egg
Coins are the main currency, and they are the free path to buying eggs. They spawn on the ground during every match. Walk over a Coin and it is collected automatically, so there is no button to press. You can pick them up while chasing objectives or dodging the murderer.
There is a cap per round. A standard player can gather up to 40 Coins in a single match. Once you hit that limit, no more Coins appear for you until the next round starts. Owning the Elite Game Pass raises the limit to 50 Coins per round, which speeds up how fast you save toward an egg.
How to get Diamonds
Diamonds work differently. They do not spawn in matches. Diamonds are a premium currency bought with Robux through the in-game shop. Once you have them, you can spend them on the Common Egg and other premium shop items. At 100 Diamonds per egg, this is the faster route if you would rather not grind Coins.
Common Egg FAQ
How many pets does the Common Egg contain?
The egg holds 21 pets. That total comes from 7 base pets, each with one Fire variant and one Chroma Fire variant.
Can you get Fire and Chroma Fire pets straight from the egg?
Yes. Each base pet has both a Fire form, which is Godly, and a Chroma Fire form, which is Chroma Godly. The exact odds for these upgraded pulls have not been shared.
What does the Common Egg cost?
You can buy it for 1,000 Coins or 100 Diamonds from the shop, and each buy gives one random pet.
Because every open is random, filling out all 21 pets takes patience and repeated purchases. Stacking Coins across matches, or picking up the Elite Game Pass for the higher per-round cap, is the steadiest way to keep buying eggs until the rarer pets and their Fire forms finally drop.
