Hammer Chime
Hammer Chime is a Boss mini-game against Hammer Bro. in Mario Party DS. The main idea is to follow the pattern. Hammer Bro. will hit four colored drums in order then release a music note to attack the player. Using the stylus, the player has to play the same drums in order before the music note hits them. If the player doesn't hit the same combination in time, they will lose a life. If the player manages to play them on time, then charged Music Note go back and hurts the Hammer Bro. and he will lose a life. When the Hammer Bro is defeated, the Player wins and clears the board challenge on Toadette's Music Room. They are also awarded Toadette's music chair as a trophy.
Rewards
When replaying the boss mini-game in Free Play, the player can win a specific musical instrument trophies and other things based on how many times they have beaten this boss. Some of the rewards include for Second Win - Toadette's Piano, for Third Win - Toadette's Timpano and for Fourth Win - Hammer Bro's Hammer. After beating the game 5 times, they are awarded the defeated Hammer Bro.