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Mass Hip-Po-Sis
迷子のヒポポタスを助けろ！ Save the Stray Child Hipopotas!
Broadcast dates
Japan	August 23, 2007
USA	January 5, 2008
Theme songs
Opening	Diamond and Pearl
Japanese theme songs
Opening	Together
Ending	君のそばで 〜ヒカリのテーマ〜(PopUp.Version)
Credits
Animation	Team Iguchi
Screenplay	大橋志吉 Yukiyoshi Ōhashi
Storyboard	山田浩之 Hiroyuki Yamada
Assistant director	山田浩之 Hiroyuki Yamada
Animation director	夏目久仁彦 Kunihiko Natsume
Screenshots on Filb.de

Mass Hip-Po-Sis (Japanese: 迷子のヒポポタスを助けろ！ Save the Stray Child Hipopotas!) is the 44th episode of Diamond & Pearl. It first aired in Japan on August 23, 2007 and in the United States on January 5, 2008.

Contents 1 Synopsis 2 Major events 2.1 Debuts 2.2 Characters 2.2.1 Humans 2.2.2 Pokémon 2.3 Trivia 2.3.1 Errors 2.3.2 Dub edits 2.4 In other languages

Synopsis

Major events

Debuts

• Hippopotas

Characters

Humans

• Ash Ketchum
• Brock
• Dawn
• Jessie
• James
• Rhonda
• Sinnoh Now Staff
• Giovanni (fantasy)

Pokémon

• Pikachu (Ash's)
• Meowth (Team Rocket)
• Turtwig (Ash's)
• Aipom (Ash's)
• Staravia (Ash's)
• Piplup (Dawn's)
• Buneary (Dawn's)
• Pachirisu (Dawn's)
• Buizel (Dawn's)
• Sudowoodo (Brock's)
• Croagunk (Brock's)
• Happiny (Brock's)
• Cacnea (James's)
• Hippopotas (Seiyū: 佐藤智恵 Chie Satō)

Trivia

• Music from Lucario and the Mystery of Mew, Pokémon Ranger and the Temple of the Sea, and Because the Sky is There are used as background music.
• Hippopotas is seen riding atop Ash's head (at Ash's insistence), despite weighing over one hundred pounds.
• Jessie frequently mispronounced Hippopotas's name. (In the dub, it's a different way each time.)
• It is also one of the few episodes since Tricks Of The Trade in which Jessie's Wobbuffet didn't appear.
• Professor Oak's lecture returns.
• Professor Oak's lecture: Mothim
  • Pokémon senryū: ガーメイル　おてがみかいたよ　eメイル Gāmeiru, otegami kaita yo, imeiru "Garmeil, it wrote a letter, an email"
• Ash narrates the next episode preview.

• The road construction sign that was written in kanji was left unedited in the dub.
• The same Hippopotas from this episode appears in DP065.

Errors

• When Rhonda met up with Ash, Dawn and Brock, she was holding the microphone in her right hand and waved them with her left hand. The next screenshot, it was reversed, but after that it switched again.

Dub edits

In other languages

• Italian: Un Hippopotas in pericolo
• Iberian Spanish: ¡El Hippopotas perdido!