Surprisingly complex for an NES game and suffers from AI issues; read the manual for this one.
Gameplay is more complex than most other NES games due to the nature of the limitations of the 8-bit platform's ability to replicate the baseball experience. Pitching and swinging are straightforward, although the batter's box could use some adjustment. Running bases is simple enough as well; the directional pad corresponds to the diamond, and a player standing on any base can be told to advance or steal. When pitching and outfielding, the same control scheme is used to guide balls towards the desired base. AI issues do hamper gameplay, however; outfielders have a high tendency to miss ground balls even when it looks like grabbing them is a sure thing. The AI also seems to be balanced towards the computer's side when playing in single player mode. Reading the manual for further details on how to control players is a must.
Overall, given the whole picture, Baseball is a decent replication of America's favorite past time on the NES. While it may not hold a candle to the new crop of games available today, such as Nintendo's latest sports launch title, Wii Sports, Baseball is still an enjoyable game and sure to bring gaming nostalgia to collectors everywhere.