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

Best friends always stick together -- especially when they are in trouble!

Ricky Ricotta and his Mighty Robot always watch out for each other -- that's what friends are for! This time, they've managed to mangle the Ricotta family's minivan. Somehow they have to find a way to make up for their mistake.

When a mean little Martian named Major Monkey invades Earth, Ricky and his Robot race to save the day once more. But Major Monkey has a plan to get rid of Ricky's Robot so that no one will be able to stop him! Now it's up to Ricky to rescue his friend and keep Major Monkey from menacing mousekind!

• Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3)
• Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)
• Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2)
• Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6)
• Ricky Ricotta's Mighty Robot vs. The Uranium Unicorns From Uranus
• Ricky Ricotta's Mighty Robot vs. The Naughty Nightcrawlers From Neptune (Ricky Ricotta's Mighty Robot #8)
• Ricky Ricotta's Mighty Robot vs. The Unpleasant Penguins from Pluto (Ricky Ricotta's Mighty Robot #9)
• Ricky Ricotta's Mighty Robot (Ricky Ricotta's Mighty Robot #1)
• Dog Man: For Whom the Ball Rolls: From the Creator of Captain Underpants (Dog Man #7)
• Game Over, Super Rabbit Boy! A Branches Book (Press Start! #1)