Here is the full list of all 19 FlyN achievements.
Complete all the bonus levels.
Complete the Electri's bonus levels.
Complete the Trilab's bonus levels.
Stop the Garbage Collector
Die more than 50 times in a single level, then complete it.
Stop the Telescreen.
Dash 1,500 times.
Stop the Portapotree.
Bounce 5,000 times.
Stick for 1 hour.
Glide for 10 minutes.
Complete the Tripatio's bonus levels.
Stop the MX_Tripator.
Return to the checkpoint 50 times.
Complete the Tricoton's bonus levels.
Stop the MX_Tricotor.
Sing for 2 minutes.
Buy an illustration.
Buy all the illustrations.