Enzo Matrix is Dot's little brother. Enzo hero-worships Bob and intends to become a Guardian. Enzo is very energetic and loves to play games like Jet Ball and Circuit Racing. When Mainframe was rebooted, Matrix accidentally left his icon in "Game Sprite" mode, causing the system to recognize Enzo as missing, and so created a second Enzo using the last available data on him, sometime before his "first birthday". Enzo looks up to his older self as much as he does Bob.