Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8)Dav Pilkey4.5
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 Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6)Dav Pilkey4.7
Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)Dav Pilkey4.8
Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta's Mighty Robot #4)Dav Pilkey4.2
Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3): Giant Robot Vs. The Voodoo Vultures From VenusDav Pilkey4.8
Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2)Dav Pilkey4.6