The last two moves were a bit too... extreme for a fight Light thought. At least, a fight inside a city. Especially the shadow guy who's move looked... painful to say the least. With the moves getting bigger and bigger, it was inevitable that someone other than these two would be hurt by these shenanigans. 

"Might as well bring this to a close before they start tossing around bombs or something." Light said as she pulled out a whistle and blew on it, an absnormally loud TWEEET sound coming from it trying to catch the two fighter's attention.

"Now I was fine with simple blows, but after that... hyper speed sphere thing or whatever, this has gotten out of hand. Eventually one of you will have a move miss or redirect it at the people below, and I'll have to being you guys in one of four ways. So stop the fight here before people get hurt." Light said, asserting whatever authority she could.