Starlight had, as the guard had suggested, picked up a couple of Sunburst's constructs along her way towards the floating sphere. Given its peculiar firing pattern, it wouldn't be particularly hard to approach it from the side. The problem with that, and the reason she was rather glad she'd actually listen to the suggestion, was the process of actually getting through the streets between her starting point and the sphere itself. They were not devoid of soldiers, far from it, and on more than one occasion she simply had to give up the idea of proceeding a certain way.
But the time she had was finite. She could only wait for so long, the spell would continue to spread and soon it would affect areas too close to the centre of town. Paradoxical as it seemed, Starlight considered the idea of approaching the onslaught of bullets head on. No one would be on her path, and she'd have a clear straight line to her destination. It would also, obviously, involving shielding herself against a constant hail of magic energy, not to mention making her a clear target. It was far from a perfect plan. Yet it was ever so slightly safer than trying to run straight through a group of soldiers, and if time ran out and she was forced into a desperate option she wanted to look into all of them and pick the least suicidal one, even if it earned that title by very little.
And that was only the first half of the issue. Once she actually somehow got to the sphere hurling out all those projectiles, she would need to stop it in some way. She was actually fairly confident in her ability to do that, but she was also aware that she was dealing with extremely powerful and extremely advanced magic from another world. Not outside her weight class, but not a walk in the park either. She'd need to be fast and work under pressure. She wasn't bad at either of those, but that didn't mean she wasn't still worse under those conditions than she would have been normally.
The consistency of the spell's output was perhaps the most concerning part. It had been firing for minutes at that point, consistently increasing the amount of ground it covered, and yet the density of its projectiles had not changed, their strength had not diminished. It felt like looking at an impossibility, something that should not have worked and yet did. It was frightening. Starlight knew, of course, that there was an explanation, but the fact that the opposing force had developed something capable of even just giving the impression of breaking conventional laws and principles of magic was in itself a deeply unsettling thought. Perhaps scarier than the idea of them achieving the impossible through external means was the knowledge that they had built something hardly distinguishable from it while still playing by the rules.
But an impossibility it was not, and so there had to be a way to stop it. All Starlight had to do was actually get to it in one piece. Hopefully that, too, wouldn't be impossible.