When the balls hits the platform in Arkanoid, you can control the angle the ball takes by where it hits the platform. If it's on the very edge of the left, it will go more sharply and horizontally to the left. Same for the right side. If it hits more towards the center, it will go more vertical.
Knowing this can help you plan out how to position the ball where you want it to go. For those pesky single blocks left at the end of the board, you may need to plan 2-3 steps in advance to get the ball where you want it.