Tokusou Sentai Dekaranger
His fighting style is , chosen by his mentor to learn the style's secret technique, Vega Impulse. It was revealed in "Tokusou Sentai Dekaranger vs. Abaranger" that Doggie suffers from a backbone problem which causes him to miss once in 2,000 attacks, which was cured by Yukito Sanjyo. Incidentally, Doggie is friends with Ryunosuke Sugishita who in turn, was friends with Miyuki Ozu. When Doggie, Swan, and Miyuki met, they all quickly became close friends when Miyuki attempted to entrust the two with the Heaven's Flower. Doggie also fought Wolzard for a short time, both proving to be evenly matched. His appearances in "Kaizoku Sentai Gokaiger" show that he is also friends with Signalman and Space Sheriff Gavan. In "Tokusou Sentai Dekaranger: 10 Years After", on a hunch, Kruger learned Kight Reidlich was selling intel to the mafia and finds himself mortally wounded while framed of murdering the mobsters and their hostage. After convincing the hostage's witness daughter to run, Kruger is heavily sedated for two years before Jasmine revives him. But Kruger was too weak at the time and only had enough strength to save his team from Kight Reidlich before giving DekaRed his sword. Soon after, Kruger finally admits his feelings to Swan.