Grand Hammer is one of the characters from Pop'n Music 13 CARNIVAL.
Nobody has no sounds in this room, no one knows the quintet.
Its intense sound arises, ceases, and opens the door.
Grand Hammer is simply a dark violet-coated anthropomorphic piano with solid yellow eyes, with a periwinkle vase, containing a pink flower above him. He unleashes his arms to play his keys on himself from the inside.
His 2P colors give him a white color and his legs are changed to pink. His vase is colored grey the flower in the vase is blue. His arms change to a light pink color.
|Attack||ｆｆｆｆｆ！ (ｆｆｆｆｆ！ ｆｆｆｆｆ！?)|
|Damage||*slams on keyboard* (ガガガガーン Gagagagān?)|
|GOOD Play||♪ ♪ ♪ (♪ ♪ ♪ ♪ ♪ ♪?)|
|BAD Play||*keyboard slam* (ズガーン… Zugan...?)|
|WIN||♪ (♪ ♪?)|
|LOSE||*winded out* (スカッ Suka~tsu?)|
- Grand Hammer and Guwanzesama share a like of rats.
- Also, both are described as friend of rats.
- Grand Hammer cannot speak normally and just makes piano sounds.
- Grand Hammer's name is a pun off of a grand piano hammer
- A grand piano hammer is a small object inside the piano that hits a string when a key is pressed to make a note.
- Cup-kun makes a cameo in Grand Hammer's Win animation.