funny story: this scene was actually improvised. the script originally called for pikachu to roll over onto his side and deliver a line that went “good battling today ash. can we get ihop in the morning?” but during filming, pikachu started thinking about how his real life trainer never hugged him and also will smith’s dad, so he delivered this amazing performance all off the top of his head. the animator was like whoa wtf. what a brilliant moment.