In episode 36, this card can be seen on the ground after Chumley drops his deck.
In episode 50, Chumley uses this card during his duel against Vellian Crowler. He Special Summons this card via the effect of "Eucalyptus Mole". On Chumley's turn, he activates "Wild Nature's Release" to increase this card's ATK by this card's DEF. This card then attacks and destroys "Ancient Gear Golem". Chumley then activates "Beast Soul Swap" to return this card to his hand and Special Summon this card back to the field (which makes this card invalid for the last effect of "Wild Nature's Release"). This card then attacks and destroys "Ancient Gear Soldier". Later "Ancient Gear Golem" attacks and destroys this card. Chumley then activates "Animal Trail" to add "Des Kangaroo" from his Deck to his hand. On the last turn of the Duel, Chumley activates "Ayers Rock Sunrise" to Special Summon this card from his Graveyard and decrease the ATK of "Ancient Gear Golem" by 200 for each Beast-type monster in his Graveyard. Since Chumley has two Beast-type monsters in his Graveyard, "Ancient Gear Golem" loses 400 ATK. Chumley then activates "Polymerization" to fuse this card with "Des Kangaroo" in order to Fusion Summon "Master of Oz".