I enjoyed watching this episode, it had many good and funny moments. I liked how determined Ash was to save that Hippopotas, it's nice when he was carrying it on his head.
It's funny when Brock got hit by Hippopotas's Yawn and Croagunk dragged him, was hilarious. After Team Rocket tries to steal Hippopotas and Ash's Aipom blasts them off, Hippopotas's Next Victim was Dawn, who falls asleep the same way Brock did. Team Rocket attacks Ash and Co. again, but Hippopotas used Yawn again......this time on Jessie! Jessie sleeping during the motto and James using her as a puppet to do the motto was by really funny!
I liked the scene where Brocks was hitting on Nurse Joy and Croagunk hit him with Poison Jab, the expression on Brock's face was hilarious!
I'm glad the Hippopotas reunited with his family, but it using Yawn on Ash and Pikachu was the last thing I wanted. Ash and Pikachu are the only ones who didn't fall asleep during the whole episode....until at the end, so it kinda annoyed me. Other than that, it was an enjoyable episode.