>>58100717This
If you already have a player assigned, random value, then you can just have the game read, I don't fucking know, the last digit of the trainer ID, to pull one of a fistful of encounter tables for a particular route, and just have some of these reflect exclusives. Someone with 7 or 8 can't get, I dunno, Magmar, Sandshrew, Ekans, Jymx, Oddish. Someone with 1 or 2 can't get Meowth, Magmar, Electabuzz, Jigglypuff, Oddish, Koffing. Ect