Bricks Breaker Quest is graphically very simple. If it weren't for the fact that the ball is round, then Bricks Breaker Quest is a game that could have come out at any time in the last 43 years since the original Breakout. But even with its simple design, Breaks Breaker Quest looks good on modern devices. All text is clear and easy to read, and all objects are easily distinguishable. The bricks look like boxes, the balls look like the shapes you choose, and the diamonds look like the stereotypical diamonds you often see in the media.
The sound design of Bricks Breaker Quest is simple; an audible thump when the ball hits a breakthrough, the characteristic sound of a laser destroying a cube, and a little jingle when you win or lose. Otherwise, it's a very quiet game that shouldn't bother others around you too much if you're playing at a very low volume.
Bricks Breaker Quest makes use of the diamonds you earn after each successful map, which you can use for new shapes of balls, a continuous option if unsuccessful, and some randomly generated power-ups. But you don't need to buy anything in any way that performs well in the game. In fact, I actively discourage it. Games like this one are all about solving the puzzles you encounter.