How do you open the chest on world 7-4 down the chasm on super paper Mario?

In Super Paper Mario, to open the chest in World 7-4 down the chasm, you need to use a specific item called the "Super Pickax." First, navigate to the area with the chest, then drop down to the chasm where the chest is located. Use the Super Pickax to break the blocks covering the chest, allowing you to access its contents. Be sure to be careful of hazards while making your way back up!