The last time Kevin had seen a Mecha for real was at the Robotics Convention in Keppler. It was one of the only two Combat Mechas in Technoria, and wasn't even fully functional at that time.
Out of all the things Kevin expected to run into in the Great Dust Bowl, a fully functional Combat Mecha being piloted by a Raider had to be the last on his list. For one, all Mechas needed advanced operating software and trained pilots who had spent many years learning how to control such high-tech robots.
Kevin didn't feel too confident about facing a Mecha, but he sure as hell wasn't going to retreat without completing his mission. Having lost his parents, he had become overprotective of the ones close to him. The fear of losing his dear ones again was what pushed him over the edge and made him brave beyond his years.
