He is an Imaginary Friend.
Currently, Wilt is much taller and more muscular and less lanky than original.
His wonky left eye and his misiing left arm have been replaced by a Fusion-Matter eye and a Fusion Matter arm, takn from Fusion Wilt.
He now has much larger and muscular arms and leg fit to match the large Fusion-Matter Arm, and there is also some Fusion Matter Cell Corruption so his arm and eye could attach to his body.
He has a much larger chest and the blue one mark that is lined with white has moved to his right peck and changed into a similarily colored infinity symbol, and he also now wears a Basketball Jersy, a large pair of Basketball Shoes, and long Socks, a Sweatband, and a pair of Basketball Armbands