You decide to remain invisible for now, and see how this plays out. Even if she's as new as you, maybe she has some insight into how this is supposed to work that you lack?
Stepping closer, you give her a quick look up and down. She's half a head taller than you, with a somewhat curvier frame, and a restless disposition. "Where are they?" She mutters to herself, glancing about before returning her attention back to the motionless beast uphill. Her dark green hair is set in a unique style, pulled back into a thick ponytail (held together by a fluffy black scrunchie) at the nape of her neck, that falls straight and smooth until suddenly exploding into a mess of curls at the end. Though one eye is hidden beneath her bangs, the dark bags and puffiness of both are visible under hastily-applied makeup; has she had a bad day? For a moment you want to say something, before remembering you have no clue what to say, and she can't hear you anyway. All told, she seems strangely familiar, though you can't place why.
Her dress is a shoulderless and floaty affair, with layers and layers of translucent cloth in different shades of green overlapping to create a gradient from palest mint up top, to murkiest fern on bottom, with black stockings and full-length gloves to finish things off. The weapon you noticed earlier, you now realize, is a wide bladed hoop inlaid with jade and malachite.
Suddenly, the monster moves, lifting its bulky figure up and beginning to walk to the right… down a different street than you two are on. "Aw, crap," she says, and starts sprinting after it, heels clacking loud against the pavement. "That useless shadow… thing… better get here with my backup now!"
You follow after as she heads uphill toward the beast, and do your best to observe the opposition as you do so. It's pretty huge, standing a story and a half tall upon six muscular legs, ending in appendages that resemble a bizarre cross between hooves and clenched fists. The head is blunt and bulbous, and completely lacks discernable eyes; the mouth is a toothless maw open at an angle that makes you think of a cheese circle. The whole thing is a light grey color, with luminous white carapace on its back and shoulders. All in all, it's a bulky and intimidating beast, akin to an elephant but far meaner-looking.
By the time the two of you reach the intersection, the monster's a good way down the other road; despite its sluggish pace, it's got a long stride. "Hey, you! Ugly!" the verdette calls at it, only to be ignored. "Right, okay. Let's try something else." She lifts up her hoop-blade, grimaces at it for a moment, then shrugs and hurls it with all her might at the creature's backside. It skips off of the pale shell, but leaves a deep gash in the process, and successfully gets the monster's attention. It groans a bit, smashing a storefront canopy overhang with its face as it swings back around.
Now that it's lumbering back toward her, the girl seems to be rethinking her plan. "Uhhh… crap. What was I supposed to do now, again? Should have been paying more attention…" She frowns at this, taking on a strangely melancholy expression, and rubs at her visible eye. "Whatever, I don't have time for this." She makes to lift her hoop-blade before her, before realizing she threw it away, and by this point the creature's almost on top of her. "Oh, this is going to su-"
The beast unleashes a brutal right hook that sends her rocketing through the air and crashing through a second-story window on the opposite corner. You wait a moment, but she doesn't come out, and now the beast is seconds from obliviously stepping on you, too.
What do you do?
> Climb (Take a ride on the creature's leg and look for weak points.)
> Defend (Head up to her location to see how she's faring, and if you can help at all.)
> Distract (Stay on the ground, but try to draw its attention away from her.)
> Retreat (Stay back, stay invisible, continue to observe. Maybe even ask for advice?)