Pet Rock Memory Concentration

Who doesn't like pet rocks?
Have fun while challenging your memory with this entertaining game!
Fantastic game for people of all ages.
You will be amused by the unique sounds of each pet rock.

Features
+ Completely Free!
+ Sound on/off
+ Unlock new exciting pet rocks as you progress further.
+ Pet Rocks are placed dynamically so you never have the same puzzle twice!
+ The optional online leaderboard scoring has 7-day, 30-day, and all-time scores.
+ Each rock pair that you find counts towards increasing your position on the leaderboard
+ Tablet Support
+ Infinite play
+ Small download size