When people attended the challenge matches on the day after the product reveal, they never expected trouble to occur.
Why would they?
Phoca Arena was the largest and most well-equipped mech arena on Bortele III. It had finished construction only a few months ago and made use of near-modern technologies.
Aside from the lack of hyper technology due to the unreliable nature of the tech and the relative scarcity of high-grade hyper materials at the time, the enormous facility was more than equipped enough to protect people from various dangers.
The Red Association also put a lot of effort into bolstering the security of the venue. Much of the surrounding blocks had been closed off from any form of traffic and intrusion.
The millions of people who attended the event on the first or second day had to subject themselves through rigorous and occasionally invasive tests.