As Dino Riki, players set out to battle through four stages of prehistoric shooter. Dino Riki starts out throwing stones to defend himself as he scrolls vertically in the stages while being able to move in all directions. Cute, flying enemies attack in patterns, while ground enemies also shoot projectiles. Dino Riki doesn’t move nor attack that well to begin with, but numerous power-ups of several types are available by shooting stationary ground objects.