R.B.I. Baseball 4 or R.B.I. 4 Baseball (Ｒ.Ｂ.Ｉ.４.ベースボール) is a 1992 baseball game for the Sega Mega Drive by Tengen and the sequel to R.B.I. Baseball 3. It was followed by R.B.I. Baseball '93. For whatever reason, the Japanese version does not uses the NPB's teams.