"Jikkyō Powerful Pro Yakyū (実況パワフルプロ野球, lit. "Live Powerful Pro Baseball"?), also known simply as Power Pro or Pawapuro to non-Japanese speakers, is a traditionally Japan-only baseball series created by Konami. It is known for its big-headed characters, and addictive arcade-style gameplay. It is long running in Japan, starting out in 1994 for the Super Famicom. The game has also appeared on the Sega Saturn (from 1995 to 1997), the PlayStation (from 1995 to 2003), the Nintendo 64 (1997 to 2001), the PlayStation 2 (from 2002 to 2007), the Dreamcast, the Nintendo GameCube (also from 2002 to 2006) as well as Wii (since 2007). A version of the game has also seen release on the PlayStation Portable, currently with three installments. The series is within its 15th iteration on home consoles. It is one of the long-lasting titles in Japan with most number of game entries, like Winning Eleven/PES Series (also from Konami), Super Robot Wars Series (Banpresto), and Final Fantasy Series (Square Enix)"
Source: Wikipedia, "Jikkyō_Powerful_Pro_Yakyū_series", available under the CC-BY-SA License.