Read the passage. Then explain how Raphael is
characterized based on the way Squeaky describes
him

Raphael Perez is characterized as someone not only fast (almost as fast as Squeaky, the narrator) but also willing to use psychological warfare to inflict doubt and fear on his competitors even before the race actually begins.

He does this by cleverly bringing attention to a number of potential pitfalls that his track competitors might run into or encounter, regardless of the fact that some of these pitfalls are quite hilarious and probably very unlikely to happen during the actual race.