I wanted to share a few tips that helped me during my playtime, they aren't mandatory to enjoy the game but makes the whole journey easier for your fingers.

This game requires you to keep your finger on W to run, there is no auto run. Yet, you can download AutoHotkey[www.autohotkey.com] and use this small script shared by @SinusPi to auto run by using the middle button of your mouse (the scroll button, yes press it, there is a button there).

Having the directions key locked to WASD for someone who doesn't own a QWERTY keyboard is a real pain fortunately you can use ATNSOFT Key Manager[atnsoft.com] to solve the problem, here are the 3 keys to create (set them on the same folder and add each game where this change needs to be applied directly on the folder's property).

• Launch the game for which you want to change the settings.
  
• Create your WASD folder then double click on it. Click on "add an exception" next to the area called "apply", then add your exception like follow.
  
• In the folder create the following "Key or Key combination" action.
  

Before anything, I would like to precise that the area only begins where are the firsts stars to collect. Before that it's only an introduction and no secrets are hidden in that area.

"Dig up your first item"
This one will unlock when you'll dig to find an item from the male protagonist past. Follow the light pillars and dig with left mouse button or E key when prompted.

"Well Hidden"
Each chapter have an hidden object to uncover, you'll get this achievements by finding the first one.

"Hare Today"
This achievement will pop when you'll manage to touch your first hare, for that run in their direction and try to have then running onto a tree, they make a squealing noise when hit.

"Easter Bunny"
This achievement will spawn when you'll catch the 13 rabbits of the first area, here are an indication of where are all the groups (credit to @Viporion) :

• Behind the first big stone in the level. (3 rabbits)
  
• Find the school desk. Orient yourself with your front paws aimed at the books and the hind legs at the desk and chair. Straight forwards over the hill. (3 rabbits)
  
• Find the sheet metal house. Stand inside looking out. Go straight. (2 rabbits)
  
• Stand on top of the tank, look in the direction the barrel is pointed at. Go to that hill. (1 rabbit)
  
• Follow the right side of te valley to the end of the level. Before the three stars is a flat area to your left. (2 rabbits)
  
• From the start of the level. Follow the dark ground to the right side of the level till you find a single large rock. Slightly behind and to the left of that rock. (2 rabbits)

"Uncover all main items in the game"
Those are related to the light pillar you can find in each area, they are easy to see from afar and a digging prompt appears where is the item.
Chapter 1 : Train - Boat - Tank - Drawing House.

"No Stone Left Unturned"
Chapter 1 : Vase. After reaching the first stars, turn straight to the right, you'll see a small path going up to an area with some debris. You can find the vase among them (there is no digging prompt for those)


"150 Stars"
Chapter 1 : There are 30 stars to collect.
Be careful, the line of 3 stars at the opposite of the entrance launch the chapter 2 so make sure you have collected the 27 other stars before heading there.

"50 Stars"
This achievement will spawn as you will collect the last star on the area before the Waterfall.



"Uncover all main items in the game"
Those are related to the light pillar you can find in each area, they are easy to see from afar and a digging prompt appears where is the item.
Chapter 2 : Skull Notebook - Key Ring - K7 Tapes - Sketches.

"No Stone Left Unturned"
Chapter 2 : A pile of notebooks. After reaching the second area of the place, find a barbershop sign between the waterfall and the exit, it's close to it.


"150 Stars"
Chapter 2 : There are 30 stars to collect.
You have to find 20 of those before going down the waterfall area. You will need the triple butterfly jump to find a part of those missing on the second area.

"100 Stars"
This achievement will spawn as you will collect the very last star of this chapter.


"Joseph"
You need to find your name carved on a tree. Simply touch the tree to unlock this achievement.
The tree is situated between the knife and the last obsidian stone.


"The Way Forward"
Activate the three obsidian rocks, it will also open the bramble area near the tree unlocking Joseph achievement.



"Uncover all main items in the game"
Those are related to the light pillar you can find in each area, they are easy to see from afar and a digging prompt appears where is the item.
Chapter 3 : Hub cap - Knife - Bird house - Map - Letters (After the mountain descent).

"No Stone Left Unturned"
Chapter 3 : Diploma. Follow the left wall from the entrance of the chapter until you find a boat, dig between the first-aid kit and the cap.


"150 Stars"
Chapter 3 : There are 40 stars to collect.
32 stars are located in the obsidian stones area, 3 can be found on the bramble after unlocking it, lastly 8 are located on the descent from the mountain.

"No Stone Left Unturned"
Chapter 4 : Antlers. Right after the night area, as you reach the shore, go straight to the left. At the very end you'll find a fireplace, dig between it and the fire poker.


"150 Stars"
Chapter 4 : There are 25 stars to collect.
There are no stars in the night area, a few of them are hidden within the shore though.

"Deja Vu"
When playing as Joseph, follow the fox after sleeping in the tent. When reaching the first rock you'll find an old campfire, the name is written on the tree with a birdhouse near it.


"Hummed of Mystery"
Finish the game. This achievement appears at the end of the credits.


"Completionist"
Find all the secrets achievements in one play through to unlock it.



"Uncover all main items in the game"
Those are related to the light pillar you can find in each area, they are easy to see from afar and a digging prompt appears where is the item.
Chapter 5 : Architecture blueprints - Newspaper - Picture.

"No Stone Left Unturned"
Chapter 5 : Framed photos. After climbing a hill you'll discover a house with a green roof, dig between the three stars close to it.


"150 Stars"
Chapter 5 : There are 25 stars left to collect.
If you miss the first jump at the entrance of the level, don't hesitate to restart it, you can't access this area again after going down the valley.

I hope this guide will be helpful for someone, if I forgot anything or wrote anything wrong, don't hesitate to comment :) !