Rom Hacks
In order to use the ips files on this site, you will need a copy of the Bad News Baseball rom file (you’re on your own finding this) and an IPS patcher which will patch the Rom file with the changes included in the IPS file. I recommend the simple Lunar IPS for Windows. There are some Mac IPS patchers as well which can be found here.
Bad News Baseball: Under the Lights (beta)
This hack allows you to play Bad News Baseball at night! Both the field and the sky are darker, providing an exciting nighttime atmosphere to the game. Details and screenshots to follow. This release is considered a beta release as there are still some cutscenes that feature original daytime colors.