Sonic was originally teal-colored, then a light shade of blue, but he was changed to dark blue so he would stand out against certain backgrounds and to match the Sega logo. His shoes had buckles through the inspiration of Michael Jackson's boots on the album cover for "Bad" and the red and white color scheme of Santa Claus, whom Ohshima saw as the most "famous character in the world". Sonic's spikes were emphasized to make him look sleeker, and he was given the ability to spin while jumping (so attacking and jumping could be controlled with one button). The new character was originally named "Mr. Needlemouse", but the eight-member team changed his name to "Sonic" and took the name Sonic Team. Ohshima stated that "Sonic" was chosen because it represented speed. Ideas proposed to flesh out the character included placing him in a rock band, giving him vampire fangs, and giving him a human girlfriend named Madonna, but Sega of America scrapped these ideas to keep his identity simple. Sega of America also expressed concerns that most Americans would not know what a hedgehog is and initially proposed a full-scale recreation of the character, but compromised with Sonic Team to simply make design changes. The antagonist ended up being named "Dr. Eggman" in Japan and "Dr. Robotnik" in other regions as a result of a dispute between Sega's American and Japanese divisions.