So this is your first but what other mini games are you thinking of?
Viewing post in Magikarp Fishing Preview comments
I've got a few planned out so far, I want 1 for each region by the end
Kanto - Blackjack in the Game Corner - MC can play to win a round with the prize pokemon, the main one will be Porygon but the other prizes from the game corner will be available too.
Johto - Magikarp Fishing
Hoenn - Pokemon Contests - Win for some fun with Cosplay Pikachu, haven't decided what else to add yet
Sinnoh - undecided
Unova - Nimbasa Dance Hall or maybe Pokestar Studios
That's as far as I've got