Section 120 is located on the lowest tier of the field behind the visitor's dugout (third base side of the field). Row X is the last row in the section, so this will be the furthest seating from the field in section 120. As you face the field of play from the section, seat 1 will be the leftmost seat in the row, so if you enter the section from the aisle between sections 120 and 119, you will only have to pass 2 people before getting to your seats from the aisle.

View from Section 120 at Kauffmann Stadium
This is the view from Section 120 at Kauffman Stadium.