Was One Piece Unlimited World Red made by Unity?

I just have to ask this question cause when I first saw it I was like. Man, Those Shaders look awfully like Unity's Toon Shader. I haven't got to try it but it's on the PS-Vita, which also gave me a thought because, the game "Escape plan" was also made by Unity3d which is also a PS Vita game.

I just want to know if this is true or not.

Because if it is? That would be really awesome to witness a game go viral from a popular Anime created by Unity's Software. It would just spark soo much hope for me to see Unity's Software creating something that amazing.