Pepsi

Personality
Like Yin-Yang from Inanimate Insanity series, they are duo characters in the BFHT. The red seems nice. The red side is calm. While the blue one is evil. The blue side hates all of time. They fight each other last more than 3 episodes. According to S2 E1, Red said it don't wanna fight after all.

Trivia

 * He is based of Yin Yang from Inanimate Insanity
 * Red is based of Yin since they are both nice
 * Blue is based of Yang since they are both mean