This is a bowling game with the characters from pin pals so it's called pin pals bowling. That's right you get you choose the character you want to bowl with before the actual bowling starts.
Use the mouse to move the bowling ball left or right, then click and hold down the ball to lock it's position. Aim with the green arrow and after that release your mouse click. This will roll the ball and see if you will be able to strike or not. You character will give you some comment on your shot. Play well and soon you will be able to master this game.