Ontiveros

Ricky Ricotta's Mighty Robot vs. the Jurassic Jack Rabbits from Jupiter

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot vs the Mecha-Monkeys from Mars

By Pilkey, Dav, Ontiveros, Martin

The Uranium Unicorns from Uranus (Ricky Ricotta)

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot vs The Mutant Mosquitoes from Mercury: Bk. 2

By Pilkey, Dav, Ontiveros, Martin

Mighty Robot vs The Voodoo Vultures from Venus: No. 3 (Ricky Ricotta)

By Pilkey, Dav, Geoghegan, Adrienne, Ontiveros, Martin

Ricky Ricotta's Mighty Robot: No. 1

By Pilkey, Dav, Ontiveros, Martin

Mighty Robot vs the Jurassic Jack Rabbits from Jupiter: 5 (Ricky Ricotta)

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot Vs. the Mecha-monkeys from Mars

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot Vs. the Voodoo Vultures from Venus

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot Vs. the Uranium Unicorns from Uranus

By Pilkey, Dav, Ontiveros, Martin

Ricky Ricotta's Mighty Robot Vs. the Mutant Mosquitoes from Mercury

By Pilkey, Dav, Ontiveros, Martin