The number puzzle Jelly Links challenges you to make connections between jelly buttons at each level. Some buttons have numbers, while the rest are gray with a question mark. You must click on the gray elements to select a number based on the rules of the game. It states that there should not be two identical numbers in a row or column. You can only change the numbers on the gray buttons, the rest are fixed and cannot be changed in Jelly Links. The levels in the game will gradually become more difficult, the field area will increase and there will be more buttons.