Those three Ducklett were totally trolling. XD They're so adorable. They even played Team Rocket's role when they blast off again.
The whole episode was very amusing, good one at that. Oshawott probably took the spot again for reacting to Scald. Cute thing. <3
Scraggy trying to Headbutt Sandile was pretty funny too.
It was shocking (get it?) to me when Pikachu learned Electro Ball. A very cool move though; I loved the animation from it. I guess this means Volt Tackle is exiting stage left from Pikachu's movepool. Considering it only used Quick Attack/Thunderbolt/Iron Tail all in this episode too.
Sandile evolving wasn't a surprise (considering I found out already), but the evolution animation was amazing. I hope to see more from the team soon. Hope to see Krokork sometime in the future at least.