Here is the full list of all 29 Edna & Harvey: Harvey's New Eyes achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Finish chapter one.
X marks the spot.
How's that supposed to help?
Help the old man.
Justice prevails.
Defeat the Mother Superior.
Find the right path.
Hoo hoo. Whit woo. Terwit terwoo.
I hate mini games!
I think I've been here before ...
I need more coffee! More!
Finish chapter two.
Finish chapter three.
I don't need no tutorial!
Multiple endings? I need to see 'em all.
Row, kid! Row for your life!
Did someone here order a pizza?
Droggeljug!
Even the sun follows my command!
Aaaargh!
They don't really have quicktime events in this game, right?
Floating in the summer sky.
Defeat all Harveys.
Lilli's arms were too short.
I hear someone singing ...
If in doubt - give him a clout!
That doesn't apply to me.
Shibuya power!
Sleep!