Dinosaur Game, also referred to as the No Internet Game or Chrome Dino, is a 2D arcade game where players assist a T-Rex in navigating a desert landscape filled with obstacles like cacti and pterodactyls. The game starts automatically when there is no internet connection in Google Chrome, and players control the T-Rex using the spacebar to jump and the down arrow to crouch. The objective is to avoid obstacles and achieve the highest possible score before colliding with an obstacle, which ends the game. The game is simple to play but difficult to master, and it has become a popular and iconic offline mini-game.