Yeah, it's always the little things that can decide a battle. (Can't wait for the doubles rematch!)
Also, came up with two more arenas that could work.
Arena 1: Castle Deadwood (Maybe said rematch could take place here?)
The extensive ruins of a once beautiful futuristic castle located deep within the strange and dangerous Deadwood Forest, a mysterious forest that was said to have been created from the corruptive influence caused by the sealing of the Netherworld at the end of the Great Netherworld War a thousand years ago. Inside the castle lay the remains of an abandoned laboratory that belonged to King Gufuu, former high king of Anticthon turned tyrannical Lord of the Netherworld. There, he created many strange and horrific living weapons and kept them there. Rumors also circulate that some of said experiments still roam the depths of the castle and surrounding forest.
Arena 2: Downtown Minneapolis
Series: Edible Green Tea
A bustling city scape of artificial canyons of towering skyscrapers that contain many stores and businesses (And a lot of neat little eateries.) Also an incredibly walkable city with street-side art and sculptures dotting the sidewalks with skyway bridges connecting the buildings in the winter along with being close to a large sports stadium with more art sculptures in front of that (said stadium could function as its own combat arena all on its own). In other words, it's the perfect place for superheroes or giant robots to throw down and fallen just to ruin someone's work day. (Shame rush hour traffic's such a pain.)
Whaddya think of them?