In this game, which is the 4th game of the kingdom of ninja series, try to pass the levels with 20 different difficult levels and more than one challenging enemy. Be careful, there are balls everywhere, you may not be able to complete the level at any time. watch out for monsters, they are everywhere. Kingdom of Ninja 4, ninja game, arcade game, adventure game, mobile game, challenging levels, ninja skills, action game, ball dodging, monster enemies, 20+ levels, jump, move, control, mobile controls, one player, adventure, free game