There's been a big debate about Tamaru's colors lately. You can read it on https://www.facebook.com/groups/100969210376382/permalink/581451032328195/
He looks yellow-green to me on the CGI render and his colors are not similar to those of Kongu, which he's supposed to have: https://i.imgur.com/M6x63Ij.png
So basically the question is - are his colors yellow and green? CGI renders were made by LEGO, and feel more canonical than MNOG games.