He’s a yellow X variable Algebralien with yellow skin, but one of his pupils are in the shape of a blue number Four, he has a blue bow tie, and his arms has a fading light blue color at the end of his arms. body has dark blue fading markings at the corners he despises criticism and loves BFBSwap Four. BFBSwap X is very weird and creepy. He can be sometimes nice. He loves his value. He’s the host of BFB. He’s very unpredictable. Sometimes violent and has a temper. Loves math and BFDI