Here is the full list of all 69 Bunny & Piggy achievements.
Be first
Complete seventh dlc level
To let Santa come first
Escape the saws
Go through the maze
Suppose you are lucky today
Take the second dangerous jump
Complete sixth dlc level
To die from pulsating saw
Complete fifth dlc level
To die from snowman S size
To die from snowman M size
To die from snowman L size
To die from snowman XL size
Complete fourth dlc level
Jump between two saws
Complete third dlc level
To die from saw
Complete second dlc level
Choose the wrong way
Complete first dlc level
Complete twenty-eighth level
Finish the game
Approach the closed door
The final dinner
Complete twenty-seventh level
Find the way out
Complete twenty-sixth level
Complete twenty-fifth level
Complete the twenty-fourth level
Back to the past..
Complete the twenty-third level
Complete twenty-second level
To die from the green crab claws
Complete twenty-first level in Hard mode
Complete twenty-first level
Find a hidden carrot or acorn in the cave
Complete twentieth level
Complete nineteenth level
Complete eighteenth level
The secret is hidden in the clouds
Complete seventeenth level
Complete sixteenth level
Complete fifteenth level
To die from the blue shark bite
Complete fourteenth level
Complete thirteenth level
Complete third level for 12 seconds
Go half way through a map and walk back to the beginning
To die from the earwig bite on level 13.
To move a carrot
Complete twelfth level
Complete eleventh level
Complete tenth level
Take a dangerous jump
Complete ninth level
Complete eighth level
Complete seventh level
To go in the fake door
Complete sixth level
Find hidden food on the sixth level
Complete fifth level
Find hidden food on the fifth level
Complete fourth level
Play level one with bunny, two with piggy, three with bunny, four with piggy
To die from the green snake bite
Complete third level
Complete second level
Complete first level