Jinpei is renamed as Jimmy and given more of a 'street kid' look while his position on the team becomes 'hacker'.
Jun originally had long green hair but has short brown hair in the OVA, has developed physically and has worked as a model in the past. Joe was redesigned with more of a 'bad boy' image, given a tattoo and made a smoker - His car was also updated to a Shelby Cobra. Ken, who had long hair in the original series, was given short hair. In the OVA series, the characters' designs and ages were changed along with other elements as part of the process of 'updating' the series for modern audiences.