Amazing episode, I really liked it. Iris's "little kid" comment was annoying, but the rest of the episode was great. It was nice to see Ash bonding with the Caterpie and helping it evlove into a Butterfree. I loved the scene where Ash remembered his Butterfree after seeing the Caterpie, but it would be even better if the Caterpie flashbacks were animated. I liked Ash in this episode, it's funny seeing him running into tree just to protect Caterpie. Team Rocket was really annoying in this episode, I hate it when they appear out of nowhere to steal Ash's Pokémon. I'm glad they blasted off.
The scene where Ash and Butterfree were saying goodbye to each other......was the best the scene of the episode. I'm sure Ash was remembering his own Butterfree when he was parting away with this Butterfree. *Sigh* I think this episode is one of the best Decolore Adventures episodes. It was so nice to see an emotional and heartwarming episode in the BW series after a long time, it reminded me of the episode "Bye Bye Butterfree". I liked The music they played when Ash was parting ways with butterfree. I don't know if it's an Original Japanese BGM, but it's really good.
Ash's Voice Actor Sarah did an awesome job voicing him in this episode. This time she put a lot of emotion in her Ash voice, which made the farewell scene emotional.