This guide will let you know where to find Boosters Tower hidden chests in Super Mario RPG.
- The first hidden block is at the end of the endless staircase of shy guys, near a black tile.
- In the room with the save block, jump over an area to find another hidden block.
- The next hidden block is less obvious. You need to jump on the previous block, hit it, and it reveals a goodie bag item that can be sold for around 500 gold or coins.