The name of the game is Odd One Out (OOO).
The objective of the game is to pick the item that does not fit in with the others before the time runs out and you move on to the next level.
The game starts out easy but as you progress through the levels you get less and less time.
The score is calculated based on how fast you have identified the odd item and what level you are on at that time.
The score screen will show the highest score in different grid levels.