AG162: Odd Pokémon Out!

Plot
While on the way to May's next contest, Ash and friends must stop at a nearby island to switch to ferry to the next island. They let their Pokemon out to play and Donphan, still as playful as ever, tries to play with some Rhyhorn, only to be chased by their parents. After being saved by Nurse Joy and her Meganium, Grovyle gets into a conflict with a wild Tropius and beaten badly. Meganium heals Grovyle and Grovyle falls in love with her. However, Meganium and Tropius love each other! Now Grovyle decides to battle Tropius again to get revenge and win Meganium's love!