User blog comment:Azeruth/I Got Tweeted by Ed Boon!/@comment-3982739-20110514152938

I just relized something! They DID have a orange ninja at a time. It WAS going to be Tremor, but was cut in favor of Rain. Later his color was changed to brown to match his earthquake powers. So, they didn't forget a color, it was just unused. You see, THIS is why we need Tremor in a game. Maybe they could use the orange color scheme as his alternative outfit/costume.