Titles by Dav Pilkey marked with tag: juvenile sf
- 2016 - Ricky Ricotta's Mighty Robot Vs. the Unpleasant Penguins from Pluto
- 2015 - Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune
- 2005 - Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus
- 2003 - Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn
- 2002 - Ricky Ricotta's Mighty Robot vs. The Jurassic Jackrabbits from Jupiter
- 2002 - Ricky Ricotta's Mighty Robot vs. The Mecha-Monkeys from Mars
- 2002 - Ricky Ricotta's Mighty Robot vs. The Voodoo Vultures from Venus
- 2000 - Ricky Ricotta's Giant Robot
- 2000 - Ricky Ricotta's Giant Robot vs. the Mutant Mosquitoes from Mercury