Well, I was proven wrong and I'm happy for it.
Still, I think she was a bit *too* overpowered. If this series goes more than a couple dozen chapters, we're going to see this girl who seems to have been the boss of her local arcade, get made to look like an absolute scrub, when literally any remotely interesting opponents show up. I'm glad she won but I wish she had at least faltered at the very start.