Heartwarming / Hey You, Pikachu!

  • After Professor Oak has made you release Pikachu back into the wild and you think the game will end on a depressing note, Pikachu comes back of his own accord.
  • When you finally chase down Pikachu after he shocked you, stole your lunchbox, and shocked you again several times during the ensuing game of tag, you find him sharing all the food in it among the baby Caterpie.

http://tvtropes.org/pmwiki/pmwiki.php/Heartwarming/HeyYouPikachu