TV: Marvel: She-Hulk - Nikki Even super heroes need a best friend in their court. Trials and tribulations await any super hero, and Jennifer Walters is no exception. Transformed into a Gamma-powered super hero, after receiving a blood transfusion from her cousin, Bruce Banner, Jennifer Walters inherits incredible powers as She-Hulk. Now, Pop! Nikki aims to join your Marvel collection and befriend Pop! Jennifer Walters. Team up with your favorite heroes and add Pop! Nikki to grow your Marvel Studios' She/Hulk: Attorney at Law collection. Vinyl bobblehead is approximately 4-inches tall.