Mario and Luigi venture into the Chest Station right after Bowser gets burned by giant Piranha Plants. Mario and Luigi must spin together and help Bowser bounce high up into the Piranha Plants. The area is visited for the final time in order to do battle with Dark Bowser. Mario and Luigi must spin Bowser full speed into Dark Bowser until he gives up. After that, the Mario Bros. and Bowser are ready for the final showdown with Dark Bowser.
- The Chest Station is the very last area in Bowser's body that is visited before the final battle.