The fusion cannon MEGATRON carries is widely feared as the most devastating weapon ever developed on CYBERTRON. Sickeningly powerful and hugely destructive, even MEGATRON uses it only in the most dire circumstances. No robot can stand against a full strength blast from this mighty weapon. Jump into battle with this easy-conversion vehicle-to-robot hero complete with a fuel tank that converts to double cannons! With just one click of a button, this mighty MEGATRON figure changes from Mack truck mode to battle-ready robot mode. Click the button again to convert him back to fire truck vehicle mode so he can chase down his enemies. As the battle rages on, keep clicking to convert him back and forth and face whatever his enemies throw at him!