Pop Star Classic is a free puzzle game developed by FGSoft for Android devices. The game is based on a simple concept where you must select a group of bubbles with the same color on a grid and click to destroy them. The goal is to clear the board by popping all the bubbles.

The game offers four different modes to play: Classic, Timed, Moves, and 1 Stage. In Classic mode, you can take your time and plan your moves to clear the board. Timed mode challenges you to clear the board before the time runs out. In Moves mode, you have a limited number of moves to clear the board. And in 1 Stage mode, you must clear a specific stage to advance to the next level.

Pop Star Classic involves deep thinking and strategy instead of fast-paced action. You must carefully plan your moves to maximize your score by destroying more bubbles with a single click. Overall, Pop Star Classic is a great way to pass the time and exercise your brain.