After his inception Blitz's appearance changed slightly several times (including subtle changes in color in accordance with the team's updated color scheme implemented after moving to Qwest Field in 2002) before a dramatic facelift in 2004, in an effort to make him appear less menacing to children. With the exception of friendlier facial features, Blitz appears for the most part the same as he always has: a blue anthropomorphic bird of medium height, built like a bodybuilder, and wearing a Seahawks uniform (number 0).
Since the character's introduction in 1998, Blitz has been an integral part in the Seahawks' "Ready, Set, Goals!" reading program for children. In addition to all Seahawks home games, Blitz appears at hundreds of community and charity events throughout the year. He has also appeared at the Super Bowl and the Pro Bowl.