Triple Play 99 includes over 1300 MLB players, including those from expansion teams. Triple Play 99 also introduces new features like scaling the wall, running down bunts and home plate collisions. The new career mode allows you to play multiple seasons. Tournament mode allows you to create a custom tournament with up to eight teams. Buck Martinez and Jim Houston provide commentary and play-by-play calls. Multiplayer options for PC version include modem, LAN and internet modes.