(trois flèches qui partent vers l'avant-la droite-la gauche : déplacement de la vue)
Look around by sliding your finger on the screen.

(une flèche qui pointe vers un objet ou vers une flèche de changement de warp)
Tap the screen to pick up objects or move to another location. 

(flèche qui pointe la case où s'entasse les objets ramassés)
Picked up objects appear in the right box of the lower right corner.

(inventaire : flèche qui pointe le bouton "auto")
They stack until you access the inventory and press the "auto" button. 
This will distribute them in the free slots of your inventory.

(flèche qui pointe le bouton "i")
Tap the "i" button on the lower right to access inventory.

(inventaire : flèche qui pointe la case "objet équipé" tout à droite en haut)
Drag items from your inventory to the box in the upper right corner to equip them.

(inventaire : flèche qui pointe le bouton de scroll inventaire) 
You can scroll the inventory using the central button. 

(inventaire : flèche qui pointe le bouton "croix" à droite en haut)
Tap the cross (upper right) to go back to the main interface. 

(inventaire : flèche qui pointe la zone infotexte en haut à gauche)
Select an item in the inventory, and you can read a short description that might be useful in the upper left text zone.

(flèche qui pointe la zone "main" dans l'interface principal)
Equipped items appear next to the hand in the left box of the lower right corner. They allow actions you can't accomplish empty-handed.

(une flèche qui pointe un marqueur, une flèche qui pointe un changmeent de warp).
Use onscreen indications !
Markers indicate a possible action.
Arrows indicate possible movements.

(une flèche qui pointe le bouton "+" en bas à gauche)
Press the "+" button to access the menu interface.

(inventaire : Une flèche qui pointe la barre de combinaison)
In the inventory, drag an item on another to see if they combine into an evolved object. These are displayed in the combo bar, where you can combine up to 5 objects. Evolved objects display a 

(inventaire : une flèche qui pointe l'engrenage à gauche de la barre de combinaison).
To break any evolved object into it's components, press the rolling cogwheel.

(inventaire : une flèche qui pointe l'icone de Jep ce vieux singe velu).
Sometimes you'll have to use Jepp for certain tasks. To equip him with something, drag and drop an item on his slot.