Brain Gym

The game shows a sequence of single digit numbers. The player will have to enter the second last number after each number shown. For instance, at the beginning if the numbers 1 & 2 are shown, the player has to enter 1 (the number previous to the last one). Then if 3 is shown, the player has to enter 2 (the number shown before 3). And so on.

Sounds simple? Try it out! You will be surprised how challenging it is. There are higher levels, where the player has to enter third last number, fourth last number and so on, to challenge you even more.