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