It's back! The classic 3-D puzzle that swept the nation in 1968. Instant
Insanity is amusing and addicting. To solve the puzzle, just arrange the
four cubes in a row with four different colors showing on each of the four
sides of the row of cub...
It's back! The classic 3-D puzzle that swept the nation in 1968. Instant Insanity is amusing and addicting. To solve the puzzle, just arrange the four cubes in a row with four different colors showing on each of the four sides of the row of cubes. Now includes transparent cube holder!
