Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2) (2)

Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3)

Ricky Ricotta's Mighty Robot (Ricky Ricotta's Mighty Robot #1)

Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta's Mighty Robot #4)

Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)

Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6) (6)

Ricky Ricotta's Mighty Robot vs. The Naughty Nightcrawlers From Neptune (Ricky Ricotta's Mighty Robot #8) (8)

Ricky Ricotta's Mighty Robot vs. The Unpleasant Penguins from Pluto (Ricky Ricotta's Mighty Robot #9)

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

Dog Man: For Whom the Ball Rolls: From the Creator of Captain Underpants (Dog Man #7) (7)

The Adventures of Ook and Gluk, Kung-Fu Cavemen From the Future (Captain Underpants)