Here is the full list of all 40 Fluttabyes achievements.
Play Endless for 20 minutes
Score 1,000,000 in Endless
Create a 5 ladybird bonus
Create a 5x5 shape
Create a yellow 7x7 shape
Create a green 7x7 shape
Create a red 7x7 shape
Create a blue 7x7 shape
Create a purple 7x7 shape
Get your first combo bonus
Play Endless for 2 minutes
Play Endless for 5 minutes
Play Endless for 10 minutes
Create a 4 ladybird bonus
Create a 7 ladybird bonus
Play Survival and Endless in the same hour
Survive for 2 minutes
Score 100,000 in Survival
Re-start a Survival Game
Refill the dandelion
Get your first rainbow butterfly
Get a line of 7 butterflies
Upload your score to the online leaderboard
Survive for 30 seconds
Get a line of 6 butterflies
Place your first ladybird
Get a line of 4 butterflies
Get your first double combo
Create a 4x4 shape
Get a line of 5 butterflies
Survive for 5 minutes
Score 500,000 in Survival
Score 1,000,000 in Survival
Score 5,000,000 in Endless
Score 10,000,000 in Endless
See all 4 backdrops
Create a 6x6 shape
Create a 6 ladybird bonus
Place a rainbow butterfly on a ladybird
Obtained all achievements