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