This document contains research on three video games: - Batman Arkham City, an action-adventure game based on the Batman comics published by Warner Bros. for multiple systems. - Dragon Ball Z, a Japanese anime TV series adapted from the manga about martial arts and energy attacks, known for its exaggerated art style. - Duke Nukem Forever, a first-person shooter featuring exaggerated graphics published by 2K Games for consoles. The research includes game details, evaluations of the art styles which include karate and exaggeration, and reviews stating how the games can provide inspiration for character, environment, and weapon designs in sketches.