A100 is the Iphone version of an old school game, originally played on the math exercise book

You play on a square field composed by 100 Balls; your target is clear all balls from the square

You clear a ball by simply "Touching" on it

You can start touching by any ball on the field, then you can touch balls using these rules

you can jump  two balls left or right (and "touch" the third)

you can jump  two balls up or down  (and "touch" the third)

you can jump  one ball diagonally (and "touch" the third)

There are 10 levels, you advance to the next by clearing at least the minimum number of balls of the current level.