At its core, watermelon game is a merging puzzle game that challenges players to combine fruits strategically to create higher-value fruits. The central element of the game revolves around merging watermelons, but the challenge lies in deciding which fruits to merge to maximize points and progress through the levels.

The gameplay is simple yet addictive. Players start with a grid filled with various fruits, and the objective is to merge identical fruits by dragging them together. Merging two identical fruits creates a new fruit of higher value, and the goal is to keep merging and creating higher-value fruits to achieve the highest score possible.