Jelly No Puzzle is a game where you move cubes of jelly around to combine cubes of matching colours together. While it's a very simple concept, each level presents a unique challenge: overcoming vertical objects or getting one cube past another. The constant variation in level design, and the introduction of new mechanics, such as black jellies that you can use as platforms, maintains both challenge and novelty throughout.

In each level, you start with several jelly cubes of different colours and must bring all matching cubes together. You can move your cubes left and right, and they fall if there's nothing below them, but you cannot move up or climb walls. This means that what initially seems like a straightforward path to the solution turns out to be impossible, be it due to changes in the height of levels or jellies combining at inopportune moments.

When cubes of the same colour touch, they amalgamate into one larger shape. Although this feature can be a powerful tool, allowing you to create moveable bridges for other cubes to avoid falls, it can also become an obstacle, blocking the path a cube needs to take to get to the others of its colour.

It's this set of very simple and intuitive mechanics, that, while easy to learn, take a great deal of thinking, patience and experimentation to master, that combines with the varied and clever level design to make Jelly No Puzzle a difficult yet rewarding and unique play experience.