Ricky Ricotta's mighty robot vs. the mecha-monkeys from Mars: the fourth robot adventure novel /
Ricky Ricotta's mighty robot versus the mecha-monkeys from Mars.
by Dav Pilkey ; pictures by Martin Ontiveros.
- New York : Scholastic Inc., 2002.
- 143 p. : ill. ; 20 cm.
A small mouse and his best friend, a giant flying robot, attempt to save the Earth when an evil Martian monkey and his mechanical creations attack.