Simon9by4U is a Simon like game which requires the user to not only remember the sequence of four flashing colors and the pattern of locations where they flash. You score a point for everyone you get right up until you get a color or location wrong. A score of 36 is very good and the highest recorded score so far is 66. There is no limit to the achievable score other than the users memory. The U in Simon9by4U indicates that it is a Universal Binary. You can try it once before you purchase it.