Sure, here's a sample implementation of a 2D brick-breaking game using JavaScript, HTML, and CSS:
This code creates a simple brick breaker game playable on a smartphone. The game canvas is sized to fit a smartphone screen, and the player can control the paddle using touch events or arrow keys. The objective is to break all the bricks by bouncing the ball off the paddle and walls. If the ball touches the bottom wall without being caught by the paddle, the game ends.