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