The game is basically just dragging your fingers arond the laps as 'efficient' as possible, drawing fast doesn't determine whether you win or not because the car follows the speed of your finger and certain areas require you to slow down.
What i don't like about the game is first of all, there is nothing to upgrade so you are only playing to go further in the game. Sure there are cars to be unlocked but it's still not motivating to play the game.
Second, there is no competition, in every race track there will be a car you compete against but we won't collide with the car so it's as if the car is just a ghost for show. They could've just made a time foryou to beat instead of putting a car in the race, it has no purpose!
Conclude all this, the game is not so fun but the concept is there so i hope if there is a third installment for the game then they should consider the things i mentioned above. 
