M'gann had been pretty much dealing with petty things and leaving the big events up to the aliens in blue, red, and yellow. She didn't exactly want to step on any toes, but it didn't mean she didn't want to be helpful, which she did.
That's why, when the robots started attacking the park she'd decided to cut through, she ended up dropping her backpack behind some bushes along with her human illusion. The outfit she wore to school had shifted to something much more akin to her uncle's and her skin returned to it's default green. That didn't matter much, considering she was completely cloaked when she floated up into the air. Blending in with her surroundings made it easier to maneuver.
She easily deflected a ray attempting to fry a group of teens who were scrambling from where they laid in the grass. "Run!" She instructed them as she shimmered into view. A hand rested on her temple the other was spread in front of her, showing that she was obviously erecting a barrier.
Seeing two recognizable figures, she instantly reached out with her mind. "Hello?" The word would ring through Superman and The Flash's heads. "I thought it would be easier to communicate this way, with the lasers and the stomping. I hope you don't mind." There was a bit of a pause, before she tacked on an introduction as an afterthought. "I'm Miss Martian! I'm here to help."
With that, she set another barrier, protecting another group of retreating civilians, giving them safe passage out of the park.