Four-way elimination of bricks

A type of puzzle game where blocks are eliminated, the gameplay is relatively novel. Note that the game has a time limit, so you need to find the square's vertex blocks as soon as possible.

Gameplay: Within the specified time, use the mouse to click and select four same-colored blocks that can form a square. The more blocks enclosed in the middle, the higher the score. The "b" key is the "Boss Key."