What should I buy first in Animal Hospital?
Survival stock: coffee access and one Chocolate Bar, then the free fire extinguisher routine from Shift 3, then the class that fixes your most common failure. The Teddy Bear and premium classes come after your runs survive normally.
How much do classes cost?
The wiki documents class level 2 at 200 EXP or 199 Robux and level 3 at 850 EXP or 299 Robux, with the Secret Agent class priced at 790 Robux. Shop prices are version-sensitive — the live shop display wins.
What is the Teddy Bear for?
Reviving one downed teammate (not yourself) for 1,010 Animal Coins. It is co-op insurance: a solo player gets no value from it, which is why it sits last in the solo buying order.
Is there any reason to hold coins instead of spending?
Yes — event windows and update days reprice the meta. Keep roughly one emergency stock (a Chocolate Bar plus coffee money) banked so a new class price or shop surprise never ends a session.
Do Robux items change the buying order?
They shortcut it. The Gun (99 Robux) and Chocolate Bar (29 Robux) have documented Robux prices, and class levels have Robux alternatives — convenient, but every Animal Coin purchase remains fully earnable in-game.
Why is there no trading-value or drop-rate calculator here?
Because the game has no collected trading, code, or AFK income system — the codes page documents that status with its check dates. A value table for a market that does not exist would be fiction.