Hamtaro S01 E222 I'm Flying, Ham-Hams!

"Little Hamsters, Big Adventures."

Lazuli sees a flying hamster calling Hamtaro's name. Hamtaro says he met a hamster like that once in a dream. It turns out to be Prince Bo, and he needs the Ham-Hams' help to get his umbrella back from a shark that has the umbrella stuck in its teeth.