Ricky Ricotta's Mighty Robot vs. The Uranium Unicorns From Uranus

From Dav Pilkey, creator of Captain Underpants, and acclaimed artist Dan Santat, a thrilling friendship adventure with all-new full-color illustrations and mini-comics throughout!

Ricky Ricotta loves his Mighty Robot. They do everything together, but it's sometimes hard for a small mouse to have such a big buddy! If only the Mighty Robot could find someone his own size to play with, Ricky might finally have some fun by himself.

Little does Ricky know, his wish is about to come true. Evil Uncle Unicorn has a top-secret plan to trap the Mighty Robot so that he can take over Earth, and he's got a giant surprise in store. Once again, it's up to Ricky to save the planet -- and his best friend!

Originally published in 2005, this edition features brand-new full-color illustrations and mini-comics throughout!

• Ricky Ricotta's Mighty Robot vs. The Naughty Nightcrawlers From Neptune (Ricky Ricotta's Mighty Robot #8)
• Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6)
• Ricky Ricotta's Mighty Robot vs. The Unpleasant Penguins from Pluto (Ricky Ricotta's Mighty Robot #9)
• Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)
• Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta's Mighty Robot #4)
• Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3)
• Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2)
• Ricky Ricotta's Mighty Robot (Ricky Ricotta's Mighty Robot #1)
• Dog Man: Brawl of the Wild: From the Creator of Captain Underpants (Dog Man #6)
• Dog Man: For Whom the Ball Rolls: From the Creator of Captain Underpants (Dog Man #7)