Seeking to forge alliances with Japan's Oni, he and Mr Kailanx worked with Lord Akuma of the Teutonic Knights and of a possible alliance to use and then dispose of the still human Frederick Ottoman. While Foster and Akuma did unite and they did manage to betray Ottoman and use his technology in an attempt at world destruction, that too failed with the Onis' power broken. Though again thought dead, he survived that encounter and was upgraded into a monstrous cyborg by Satan's Mengele, Mr. Kailanx a human looking mad scientist demon.
In an attempt to form alliances with Japan's Oni, he teamed up with Mr Kailanx and Lord Akuma of the Teutonic Knights, exploring the possibility of using and then disposing of Frederick Ottoman. However, Foster and Akuma eventually joined forces, successfully betraying Ottoman and attempting to bring about world destruction using his technology, but ultimately failing when the Onis' power was broken. Despite being thought dead, he managed to survive and was later transformed into a monstrous cyborg by Satan's Mengele, with Mr Kailanx depicted as a human-like mad scientist demon.