Up and Down Ninja is a casual game where you need to control ninja to go up and down and to collect ninja stars.Watch on other ninja who is on your road. Avoid them and try not to crash with other ninjas or the game will over. Play this game and get the best score. Be careful and have fun. ninja game, up and down ninja, ninja stars, avoid rivals, puzzle game, mobile game, casual game, skill, reflexes, high score, dodge, control, stars, challenge, fun, addictive, gameplay, action, puzzle, avoid collision