Hello! We are happy that you like the game and took the time to try it out! In relation to the iconography, each emoji is intended to help the players communicate to complete the puzzles. For example, one player can use the box emoji to ask the other player to bring them the box, or use the button emoji to ask to press the button. About the second screenshot, its intention is to explain the player that they can use the right trigger of the controller to grab on a box.
I hope we were able to clear your doubts!