When the Rangers do their Hyper Arrow Blast attack, their Ninja Battle Morphers don't have their individual Power Stars; however, when Voltipede leaves, their Power Stars are in the morphers.
When Voltipede's neck encircles the Ninja Blaze Megazord like a python, trapping its arms to its sides, the Rangers within also experience the condition of having their arms trapped to their sides, but when Yellow Ranger calls the Lion Fire Zord for aid, his arms are free to conduct the required Ninja Spin gestures.