I loved seeing all of those reanimated flashbacks! So many feelings, waaaah. <333
Also, N and Dent agreeing at the end cracked me up. Poor, poor Iris. (I... actually didn't know Lizardon wasn't even a half-a-Dragon Type either.)
Seeing the Koiking Salesman, Hitokage's old trainer, Kenji, Ookido-hakase, Koga, and all those old characters in the new style was so awesome!
Also, Satoshi had a LOT of great expressions in this episode. Especially whenever he got burned, in flashbacks and in present time. xD;