1-on-1 - Single Basketball © 1998 Jorudan Co., Ltd.
Released on November 26, 1998 in Japan.
Unlock Art Gallery: Complete the game once with any character
Unlock Dr. T: Begin the game in 1-player story mode and meet Dr. T
Unlock King: Beat the game with all characters including Oscar and Mash
Unlock Oscar & Mash: Begin a game in 1-player story mode and meet Oscar and Mash