Ninjago Energy Spear. Equip your ninja with energy spear and start his adventurous trip! Command your ninja to beat down all his opponents and conquer the world of robots! Ninjago fighters are back in the arena. They are trying to prove their supremacy at every opportunity. This time you will take part in these battles. You just have to prove that you’re strong enough. Fight against every enemy. Collect all the money and upgrade your equipment at the end of the level. Enjoy and have fun in playing this game.