Rubik. s 360 is the first true puzzle from Erno Rubik to challenge the classic cube for innovation & difficulty. Twist & turn the spheres to drop each coloured ball into its niche. Sounds easy, but be under no illusion, this is the hardest Rubik. s puzzle yet. Twist & turn the sphere to drop each ball into its niche! Rubik. s 360 sounds easy, but be under no illusion, this is the hardest Rubik. s puzzle yet! Spin, twist, lock & rotate the transparent sphere; featuring niches that correspond to coloured spheres inside. Can you solve this puzzle. The first true puzzle from Erno Rubik to challenge the classic cube for innovation & difficulty! Rubik. s 360 is a great puzzle for adults & children to develop problem solving!.