- ""Professor Yuki is right, this panties are most comfortable""
- ―- Dr. Go!'s thoughts.[src]
Dr. Go! was Takoshimise Scientist and spiritual leader of the White Ninjas.
Dr. Go!'s first appearance was referenced by the White Ninja Leader during the mission, ''Revenge of The Ninja'', in which he told Crypto that he might know the location of the KGB Base in Takoshima, but was kidnapped and held at Castle Kuro. In the mission, ''Dr. Go!'', Crypto rescued Dr. Go!, brought him to the White Ninja Leader at the entrance of Castle Kuro, and then destroyed Castle Kuro. The next mission, ''Our Man Crypto'', Crypto completed three tasks for Dr. Go! and reunited the fragments of a photo that contained the location of the KGB Base.
- Dr. Go! was obviously based on Dr. Julius No, an antagonist from James Bond.