In Hardest Cube Game, players control a red square with a big eye, navigating through levels to collect three cherries and awaken a blue square. The controls are straightforward, utilizing a virtual pad for movement, but players must avoid enemies to prevent restarting the level.

The storyline of Hardest Cube Game revolves around the red square's quest to gather cherries and awaken its companion, adding a light-hearted narrative to the gameplay experience.

Hardest Cube Game stands out with its 45 challenging levels across three difficulty settings, a leaderboard for competitive play, and humorous dialogues that enhance the overall experience, complemented by charming pixel graphics and engaging sound effects.