Marco the shark

"Every week is shark week in San Francisco with Marco the Shark around. Now that he’s hit the beach, it may be safer in the water! Even though his health isn’t the best, years of evolution have streamlined this monstrous man-eater into a human-feeding frenzy. Marco gives new meaning to the line, 'you’re gonna need a bigger boat'.”

~Official Rampage: Total Destruction description~

Background
Marco is a shark-like monster. Marco drank some Scum Soda and it made him turn into a giant Shark.