【實用遊戲app】Annulus|最夯免費app-綠色工廠好玩App

An addictive puzzle game inspired by the mathematical concept of annulus. Annulus (the Latin word for "little ring") is a ring-shaped object, especially a region bounded by two concentric circles.Challenge is to combine similar rings/annuli and complete the circles.- Swipe left, right, up or down to move all the rings/annuli in the same direction.- Same-sized 'blue' rings/annuli merge to form a larger 'green' annulus.- Same-sized 'green' rings/annuli merge to form a larger 'blue' annulus.- Two max sized blue (or green) annuli complete the circle.Play tactfully to hop through different levels and unlock donuts. Each donut reward requires certain number of blue/green circles.