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