Warwolf

Warwolf — released in North America as Werewolf: The Last Warrior — is a Famicom side-scrolling action game developed by Data East and published by Takara, arriving in Japan in 1991. The protagonist Ken is the last warrior capable of transforming into a werewolf; picking up a red W icon triggers the change, granting ranged attacks and wall-climbing abilities. Collecting five orbs pushes Ken into a Super Werewolf state that briefly supercharges his offensive power. The game is fast and satisfying, with the transformation mechanic sitting at the heart of its appeal.