From the Super Mario Wiki
Bob-omb in Bob-omb Avenue
in Mario Party Advance
The Bob-omb Avenue is one of the places in Mario Party Advance. It is located in the Town Area of Shroom City.
When the player decides to stop here, he or she meets Bob-omb, a member of an underground organization. Its quest, Find the Password, involves telling it the password of the Bob-ombs. Since the player does not know it, Bob-omb tells them to go to the Item Shop and buy a Bob-omb figure. Once the player is at the Item shop, and buys the figure from Paratroopa, the latter reveals the password: "Baboom." If the player returns to Bob-omb Avenue and tells Bob-omb the password, rewarding them with the Shroom Slide Gaddget.
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