Hamtaro: Hamtaro's Birthday! - 3000 Hammy Steps in Search of Mommy

It's Laura's birthday, and Laura isn't paying much attention to him. Hamtaro then went with the ham-hams to ham ham land. Hamtaro is searching for the magic sunflower seed, but, he will have to battle Maou-hamu for it.

As Laura heads out to summer camp, Hamtaro and Oxnard come across a young girl by the name of Haibi, who's trying to find the ocean. Haibi found a treasure map while searching through the storage burrow and is now willing to find the treasure to help her heat exhausted granny. The Ham-Hams, who are more than willing to help her, pack their things and set out to find the treasure.

Based on the third Hamtaro game (fourth in Japan), Prince Bo falls from the sky when the rainbow disappears. Now Hamtaro and the Ham-Hams must help him bring back the rainbow.

Considered the prequel to the fourth Hamtaro game (fifth in Japan). In this tribute to the 2004 Olympics, Hamtaro and the Ham-Hams are tasked by Prince Bo with lighting the everlasting torch to Hamcropolis. However, the Rainbow Girls will not allow this and pursue the Ham-Hams.