Pilkey and Ontiveros team up for another action-packed adventure with Ricky Ricotta and his robot (Ricky Ricotta’s Giant Robot vs. the Voodoo Vultures from Venus, 2001, etc.). In a tale that is part comic book, part early chapter book, tiny mouse Ricky enjoys playing with his gigantic robot until they decide to use the family minivan as a skateboard. It becomes a minivan pancake and Ricky and his Mighty Robot are in trouble. But before they can repair the damage, they are called into duty: saving Mars and Earth from destruction by the Mecha-Monkeys from Mars. Like the comic-book superheroes of decades past, Ricky and his Mighty Robot race from disaster to disaster, narrowly avoiding catastrophe at every turn. There is violence in the battle scenes, but the battles are comical with the trademark Pilkey plays on words. “Ricky’s Robot treated the Mecha-Monkeys to two servings of punch . . . one foot-long . . . and a knuckle sandwich.” Of course, it all works out in the end: Earth and Mars are saved, bad guys are punished, and even the demolished minivan is replaced. All is right with the world. Kid-pleasing diversions such as a flipbook and 11 “how to draw” pages add to the fun. Part shtick, part goofy predictable adventure, the easy-to-read short novel will allow the early reader to turn pages quickly, feel successful, and have fun. (Fiction. 6-10)