As Hamtaro enters the Clubhouse, Boss is in need of help. He asks you for a name and once you give him it, he tells you that he needs all the ham-hams back at the Clubhouse. Before you are to go out and look for them, he teaches you four basic Ham-Chat words, and scribbles down some others.
You are then sent on your merry way in search of the hamsters. You are able to explore several locations in which two to three ham-hams are in. One location is Acorn Shrine in which you find Bijou and Maxwell. The other locations have two Ham-Hams each as well. The Sunflower Park has Pashmina and Oxnard; the Ruins has Cappy and Penelope; the Sunflower Market has Howdy and Dexter. You can find Sandy and Stan at the Sky Garden; and Jingle and Panda at the Sunflower Elementary.
Once all the ham-hams are found, Boss shows everyone what he was doing. He had built a Ham-Jam-Room for everyone to dance in.