YUME 4 is an immersive maze that puts gamers in the shoes of Chen Xi, a famous actress haunted by memories of her past life. Passing through a series of levels with unique obstacles and puzzles, gamers must skillfully guide the lady while avoiding the dangers lurking in the shadows. A distinctive feature of the video game is its unintuitive movement mechanics. Chen Xi is moving in the opposite direction of her previous life, which adds an extra layer of difficulty to the gameplay. Mastering this difficulty requires the user to deftly coordinate movements using the keyboard so that both characters reach a given position to move on to the next difficult stage.

The title is a serious test of spatial perception, coordination abilities, as well as the patience and perseverance of the user. Besides the gameplay, YUME 4 has an interesting storyline. The story is told from the perspective of a young director collaborating with the heroine on a new film. The actress's mysterious personality and attachment to the name “Mangan” add an extra layer of mystery to the gameplay. As they progress, gamers uncover all the intricacies of Chen Xi's past and her connection with the elusive “Menggan”. Thus, the project offers gamers complex and story-rich gameplay, combining the mechanics of traversing labyrinths and an exciting storyline.