Power Instinct

Power Instinct (豪血寺一族) is a fighting video game series created by Atlus started in 1993. It is often abbreviated as PI or GI for short).

One of the innovations unique to the series was the introduction of the transformation feature. Several of the characters can change their appearance and fighting style by simply executing certain moves (usually a throwing move), though this has not been featured in every entry in the series. Other features include the ability to perform a double jump and attacking while dashing.