Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8) Dav Pilkey4.4
Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6) Dav Pilkey4.8
Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus (Ricky Ricotta's Mighty Robot #7) Dav Pilkey4.8
Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3): Giant Robot Vs. The Voodoo Vultures From Venus Dav Pilkey4.8
Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5) Dav Pilkey4.5