Giant kangaroos

The giant kangaroos are huge kangaroos that Momon uses to attack Wipe Castle in Bender's Game. Their joeys are the size of regular kangaroos. Her soldiers rode in their pouches during the attack on Wipe Castle and threw spears, unicorns and the kangaroos joeys at the castle.The Great Wizard Greyfarn tried to use a giant boomerang to kill them, but it came back and knocked him down. They have a powerful kick that could destroy a wall. They were likely to have been killed by the centuars arrows.

Trivia

 * In The Birdbot of Ice-Catraz, Bender Tells Fry a story about saving the children of Australia from a giant kangaroo, though it is most likely not true.
 * They are based on the oliphaunts (giant elephants) from Lord of the Rings and even have similar face paint.