Fruit Merge is a merge game similar to the original Suika (Watermelon) game and the 2048 tile-merging game. The player's goal is to merge pairs of identical anthropomorphic fruits in a narrow container to create larger fruits until they make a watermelon.
The game's smallest fruit is a blueberry. Other fruits include cherries, strawberries, pears, oranges, apples, coconuts, pineapples and melons. The player can drop a blueberry onto another blueberry to create a cherry. They can use two strawberries to create a pear. The player can review the merge progression by using the "i" button near the top-left corner. They can drop the fruit with the most accuracy by using a white aiming line.
The player always knows the next fruit available because of a preview at the top-right corner of the screen. It displays the points at the top-center. If the player allows the fruit to pile up, a black, dashed horizontal line appears near the top. If the fruit piles up past this line, all the pieces disappear in puffs of smoke from the container.
Fruit Merge offers two unique elements. The fruits float slightly, like they're inside invisible bubbles. This movement can cause automatic merges to take place. When the player drops small fruit, the game allows the pieces to slide down in front of larger fruits to the bottom of the container. In most Suika games, the pieces can only slide down on the left or right sides of larger fruits.