The collected anthologies of Satoshi Mizukami's oneshots.

Volume 1: Ribbit Ribbit

• Chapter 1 - Gekogeko:
  About a girl whose boyfriend is a frog.
• Chapter 2 - Yaichirou
• Chapter 3 - Densetsu no Otoko
• Chapter 4 - Joreishi
• Chapter 5 - Dokusho no Jikan
• Chapter 6 - Kaijin Natsugorou
• Chapter 7 - High Jump Rabbit
• Chapter 8 - Koutetsu Shinshou Omega Frog
• Chapter 9 - Ryuu to Shoujo to Hyakkichou

Volume 2: Cheep Cheep

• Chapter 1-3 - Piyopiyo
  A tale of a chick which never grows into a chicken.
• Chapter 4 - Makai Zanyouken: Dokidoki Jigokuhen
• Chapter 5 - Ganbatte-chan to Yameyouze
• Chapter 6 - Erabu Michi
• Chapter 7 - Thunder Girl to Hyakkichou
• Chapter 8 - Kazaana Atama to Hyakkichou

Volume 3: Galactic Emperor Ginga Thunder's Excellent Adventure

• Chapter 1 - My Fist
  Earth's ultimate weapon is deployed to face a threat of intergalactic proportions, and learns a little something about life.
• Chapter 2 - Nell, The Artist of Shambala
• Chapter 3 - Wedding Bells in Monster Town (Koi no Suzu Hyakki)
• Chapter 4 - The Awakening
  The terrible origin tale of the scourge of worlds, Galactic Emperor Ginga Thunder.
• Chapter 5 - Kare no Tabi ga Owaru
• Chapter 6 - Wani Onii-san (My Brother is a Crocodile)
  Onii-san has turned into a crocodile! How is his sister, who has a brother complex, going to use love to overcome this forbidden interspecies obstacle?
• Chapter 7 - Suna no Wakusei no Tami (Denizens of the Sand Planet)

Chapter 66 of Lucifer and the Biscuit Hammer was also included in this volume.

Volume 4: Wandering World

• Chapter 1 - Takeyashiki Shimai, Miyaburareru
• Chapter 2 - Matsuri Connection:
  About a shut-in girl and a dwarf alien, who lives on her head.
• Chapter 3 - Too Late for Fantasy:
  When given a magic lamp, 37-year-old Tohru Sugamo wishes for his childhood dream to come true and gains all the powers he thought up once upon a time as a wannabe novelist, but it turns out an eighth grader's ideas aren't the most original - or the kinds of things you'd want causing havoc in your married life.
• Chapter 4 - Fantastic Eats (Enigma Viking)
  A monster hunter and his erstwhile apprentice make their living selling unknown delicacies. This stuff is safe to eat, right?
• Chapter 5 - Walking the Void
  When Amada Yuu was a child, the apartments were his entire world. When he learned the truth, the infinte void stretching outside would come to reside inside him as well.