Conker's Bad Fur Day
The Baseball Bat had a minor role in Conker's Bad Fur Day. In one part of the Uga Buga chapter, Don Weaso beat Paulie to death with a wooden bat for "showing no respect". The Baseball Bat is also a usable weapon in the Heist level of the Multi mode.
Conker: Live & Reloaded
In the Hungover chapter, when Conker enters the room with the Key, he notices a rack of weapons. Conker forgets which weapon he used in the original Bad Fur Day. He decides to take the Baseball Bat instead of the usual Frying Pan.
Unlike Bad Fur Day, Gargoyle does not collapse after Conker whacks him with a Frying Pan. Conker thought that Gargoyle should have fell off, but he tells Conker that the designer changed the method of defeating him. Conker luckily brought the Baseball Bat with him, so he whacks it on The Gargoyle's head. The Gargoyle monotonously says "Ouch", and he stands up, falls backward, and gets crushed a boulder.
Given the Baseball Bat's success over the Frying Pan, Conker decides on using it for his main weapon. Conker only uses the Frying Pan in the Hungover chapter (including when he re-enters the area) and to whack The Big Big Guy's brass balls.
Don Weaso still uses a Baseball Bat to beat Paulie in the chapter Uga Buga.