As soon as you start the game, at the screen with many white circles:

Press spacebar then backspace to get:

If I could turn back time

It wouldn't change anything


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
I must move forward

Press S until the message is gone.

Moving Backwards

You did your best to follow instructions


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
I keep looking back

While left click is hold down, move your mouse all the way to your left or right, until you get three "I keep looking back" in your screen.

Note: This minigame usually bugs out preventing you to continue, if that happens just press esc and try again.

Keep Looking

You kept looking back


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Trapped

Grab the word holding left click, then keep moving and crashing it to the left and right corner as fast as you can, until it breaks.

Broken

Still trapped


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Let me die

Press enter

Okay

You accepted


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Darkness

Hold left mouse button down.

Get Out!

You pushed towards the light


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
The voices are getting louder

Grab "louder" word which turns into "quieter" then move it down.
Grab "negative, quiet and cries" and turn them into "positive, times and enjoy".
Now press "T" key in your keyboard.
Finally grab "enjoy" and move it to the beginning of the sentence, forming the phrase "enjoy positive times together".

Please Stop

Too many voices in my head

Madness

You solved the ridiculous wordplay


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
SAFE (strange symbols)

Here you'll see some strange symbols, grab them from the first one, then move them clockwise until they're inverted (kinda). Now grab the screen from any black spot and pull it down.

Behind the Curtain

The games are over


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Ending

Here do nothing, just wait until a few messages are shown. When "Alright, I'll do myself" shows up, you'll get:

Let me show you

Patience is a virtue

Final Destination

After that, click once on the word click.
When you're asked to pull the trigger, DON'T DO IT, instead, press ALT in your keyboard.

The bigger Picture

There is more than meets the eye


Finally, the message "Take a step back" will be shown in you screen, here just move your mousewheel down to do that.
᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁

The menu "chapter" will be available after you've finished the game once, now it's time to get the good endings.

I must move forward

Start by pressing S until the sentence "I must move forward" gets darker (without reaching the top or it will disappear), then press W+shift until the sentence gets closer to the bottom, but don't go all the way down or it will also disappear. Repeat this process around 3 times (from the topmost to bottommost) then go all the way down to finish this chapter.

Step by Step

It cost a lot of energy


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
I keep looking back

While left click is hold down, move your mouse a bit to your left until the phrase "I keep looking forward" is stuck in the right corner.
Now, without releasing your click, move the second "I keep looking back" until it goes through the first, then the second time it shows up on the screen, stuck it on the left corner.

Now comes the hard part... like at the previous part, without ever releasing your left click, move your mouse a bit to your left until the sentence "I keep looking" is visible, make sure to not show the word "back". Once done, move it to your right this time, until only the word "forward" is visible. Repeat a few times (not required but better safe than sorry).
Finally move it to your left and the sentence "I keep looking forward" should show up.

Looking Forward

You looked forward


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Trapped

Grab the word holding left click, then crash it to the right side of the screen as fast as you can, without breaking it. (May require a few attempts)
If it breaks, just repeat the chapter until it doesn't.

Breakout

You managed to break out


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Let me die

Type "NO"

Nope

You chose not to


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
Darkness

Press right mouse button a few times.

I bring the Light to you

You let it come towards you

Alohomora

The chamber of secrets has been opened


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁
After getting all good endings, you'll be automatically led to...

SAFE

Here you'll get the epilogue, you can read or skip it, doesn't matter for achievements.

Type "Depression" to get

???

It's done!


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁

A "reset" button will show up in main menu, press it once to access all the chapters again. (This also helps if you missed any achievement)

Choose "Curtain" chapter, then as soon as it starts, load the weapon really fast (dragging Trigger to the left) without pulling the "Pull", this should get you...

Dead End

You made your choice


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁

As soon as it starts, press backspace once to get:

Vicious Cycle - Still

Nor the beginning nor the end


Now, a lot of text will start going really fast on your screen. Hold down A or Left Key until it stops moving completely.

Now you can order text.
You'll hear a lockpad once you pass through some sentences.
Make it look exactly like this:



If done correctly, game will be completely frozen now.
Move your mouse over "demons" word at the bottom and click a few times to break it.

Vicious Cycle - Invisible

Though still existent


᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁・♡・᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁᠁