Here is the full list of all 34 Farm Frenzy 4 achievements.
For unlocking every character
For sending only fully loaded trucks to town while playing one level
For purchasing five animals of each type while playing one level
For purchasing five dogs while playing one level
For purchasing three dogs and three cats
For purchasing one animal of each type while playing one level
For playing Farm Frenzy 4 nonstop for 12 hours
For losing a product with a cat on the field and space available in the storehouse.
For filling the storage 30 times
For completing a level with an empty storage
For fully loading the storage five times in a row
For constructing a building and completely upgrading it
For playing Farm Frenzy 4 nonstop for one hour
For saving over 10,000 coins while playing one level
For sending 50 moles underground
For selling a full truckload of goods
For selling 15 bears
For catching 50 products in the air
For demolishing one building and constructing another one in its place
For completing the tutorial with a gold ranking
For purchasing ten animals of one type in a row
For earning 500 coins using the combo multiplier while playing one level
For completing one level more than five times.
For selling every animal to complete a level
For completing the game
For completing every level without losing a single product
For completely upgrading every building and vehicle while playing one level
For collecting every collection once
For completing a level without touching a single product
For not allowing a single animal to starve while playing one level
For losing 30 goods on each level due to the storage being full
For having no coins left at the end of the level.
For discovering all items which you can click on the level.
For completing every level with a gold ranking