Rider has a tough personality. He seems to be short tempered. After battling alongside the S4 temporarily, Rider began to care more for his teammates. He still has a serious attitude, but it’s nowhere as extreme as it was before. While sanitized he only cares about destroying things and seems to have reverted back to being tough and uncaring. After being freed from his initial sanitization, he becomes grateful to Goggles, Eight and Team Blue but still thinks that they are ridiculous: "But thanks all the same," he states after he is freed, in which Goggles pantses him.
Trivia
Rider temporarily replaces Army when he is injured.
Rider didn’t like to team up, but when he lost to Team Blue, he realized that he needs teamwork to win.