"COO COO" is an exciting 2D endless runner game where players control a ninja trying to avoid deadly obstacles while running through a dynamic, scrolling environment. The player must jump over incoming ninja stars by tapping the screen or pressing the spacebar, all while keeping track of their score and striving to beat the high score. The game features fast-paced action with a unique, stylish art direction, and it includes smooth player animations and immersive sound effects. As the player progresses, the game becomes increasingly challenging, offering an endless, action-packed experience for fans of quick reflexes and exciting gameplay.