Bases Loaded is a baseball video game by Jaleco. A version for the Nintendo Entertainment System was released in 1987 in Japan and in 1988 in the U.S., and a Game Boy port was released in 1990. A mobile phone version exists as well. Bases Loaded was released on April 7, 2008 in Japan and on April 12, 2008 in North America for Wii's Virtual Console.
The game is the first installment of the Bases Loaded series, followed by seven sequels across three generations of consoles.