There are dozens of mobile puzzle games that involve colored bricks in one way or another, and here is another one, SPB Quads.
In SPB Quads you need to create rectangles of blocks by marking corners that are the same color. The bigger the rectangle (i.e. the further away the corners are from each other), the more points you will make. Don't worry if you don't understand at first because SPB Quads will automatically feed you with hints if it's taking you a while to make a rectangle.
The presentation of SPB Quads is impressive. The blocks are shiny and colorful, and there are plenty of cool visual effects. The soothing music is a great choice for this type of game and the sound effects are good too.
There are two different game modes in SPB Quads - Ever Quad, which is a never-ending strategic game; and Time Quad, where there's a set time limit on your games. Both versions are fun and challenging, although SPB Quads does get repetitive after a while, even with all the bonuses you can collect.
As a timewaster though, SPB Quad is perfect for brightening up those dull bus journeys.