The Dinosaur Game (also known as the Chrome Dino) is a browser game developed by Google and built into the Google Chrome web browser. The player guides a pixelated t-rex across a side-scrolling landscape, avoiding obstacles to achieve a higher score.

Game Rules: - Use the spacebar or up arrow key to make the T-Rex jump over cacti and other obstacles. - Use the down arrow key to make the T-Rex duck under flying pterodactyls. - The game ends when the T-Rex collides with an obstacle or is hit by a pterodactyl.

In the Chrome Dino game, when the score reaches 99999, it resets back to 0. The game doesn't have a higher score limit or a true "end" beyond this point, it simply restarts the score counter, according to Facebook posts and game guides. The game speed continues to increase, making it more challenging, but the score counter restarts.