Where do Roxas and Axel fight after DiZ forces Naminé to erase Roxas' memory?

Roxas and Axel fight in the Twilight Town's basement, specifically in the area known as the Old Mansion. This confrontation occurs after DiZ compels Naminé to erase Roxas' memories, leading to heightened emotions and a dramatic clash between the two former friends. The setting amplifies the tension as the fight symbolizes their struggle with loss and the bonds of friendship.