House of Robots (House of Robots, 1)

The Little Wooden Robot and the Log Princess

The Adventures of Otto Collector's Set (Boxed Set): See Otto; See Pip Point; Swing, Otto, Swing!; See Santa Nap; Ride, Otto, Ride!; Go, Otto, Go!

Robot Battle (3) (Arcade World)

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

The Three Little Aliens and the Big Bad Robot

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

Hello Robots! (A Hello Book)

El escape de la robot salvaje / The Wild Robot Escapes (Robot salvaje, 2) (Spanish Edition)

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