Doll

The Doll (also known as the Cupid-Doll (Japanese: キューピーにんぎょう Cupid Doll)) is the first boss in, and resembles an ordinary baby doll that has been brought to life during the odd circumstances in the game, when a poltergeist has appeared in Ninten's house. It can be seen floating around in Mimmie's room and is presumably one of her toys; it may also be the second enemy which Ninten fights against in the game if the player chooses to directly go into her room after fighting the first Lamp in Ninten's room; if he however chooses to enter Minnie's room first he will meet yet another lamp. The doll is vital to defeat as it possesses the first melody, which is essential to recieve plotwise.

It's easy to defeat because of its low stats and lack of abilities, which probably is because it's one of the earliest enemies in the game. Ninten's limited range of attacks at this point makes the fight quite repetitive as only one is available for use, it should however be sufficient to defeat the enemy.

In-game description
It stares back at you.