Why does knuckles look big in Sonic Boom?

In "Sonic Boom," Knuckles appears larger and more muscular compared to his classic design to emphasize his role as a strong and tough character. This redesign aligns with the show's focus on humor and character dynamics, showcasing Knuckles as both a protector and a source of comic relief. His bulkier appearance also contrasts with the more slender designs of other characters, highlighting his unique personality and strength within the group.