The First Hippo on the Moon

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

Grannysaurus

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

Geronimo: Book 6

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

Little Monsters Rule!

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

There’s a Snake in My School!

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

Spectacular Stories for the Very Young

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8)

The Bear Who Went Boo!

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

Boogie Bear: Book 5

Swarm of Bees

The Slightly Annoying Elephant

Pete the Cat: Robo-Pete

Marmalade: The Orange Panda

Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus (Ricky Ricotta's Mighty Robot #7)