Issue: #21
Professor Chang blasts Beast Boy with his new G.A.R.T.H. Gun and transforms him into...Garthzilla! When the giant green monster starts trashing the city, the Titans have no choice but to bust out their secret weapon...the Titans Go-Bot 5!
First appearances: Professor Chang
Creators: Todd Nauck, Sean Galloway, Lary Stucker, J. Torres
Characters: Dick Grayson, Deathstroke, Lois Lane, Cyborg, Beast Boy, Raven, Starfire, Roy Harper, Tempest, Brother Blood, Bumblebee, Professor Chang, Silkie, Mas, Menos, The Brain, Control Freak, Kwiz Kid, Phobia