Bill

If you were looking for the enemy, go to Bullet Bill.

Bills are the second-cheapest money Luigi collects in Luigi's Mansion. Each one is worth 20,000G and they are usually found in groups by examining items in the room and moving chandeliers with the Poltergust 3000. They resemble actual bills. Luigi can easily collect them, as they can be sucked up by the Poltergust 3000.