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.
I hate mini games!
Defeat all Harveys.
Defeat the Mother Superior.
Droggeljug!
If in doubt - give him a clout!
I hear someone singing ...
Sleep!
Did someone here order a pizza?
They don't really have quicktime events in this game, right?
Row, kid! Row for your life!
That doesn't apply to me.
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.
Aaaargh!
Floating in the summer sky.
X marks the spot.
Help the old man.
Shibuya power!
Lilli's arms were too short.
How's that supposed to help?
I don't need no tutorial!