Free Ninja ringtone for your phone. Listen first, then download the version you like. Artist: Potra. You can choose from 4 versions between 23 and 69 seconds. Tags: children’s music, r&b and flamenco. Click a tag below to see more ringtones like this. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. More ringtones by Potra are on the artist page, the link is under the title.