I'm sorry, but it can't be done.
Chat with our AI personalities
If in Sandbox by REDALERT2 then you have to have super vip which is now not for sale but if you do have super vip then put the NPC down on your baseplate use your configure tool and put in the name the dialog and the ID to make your NPC
RPG games are made the same way any game on Roblox is made. However, you may find game objects such as NPC chat dialogues and buy buttons particularly useful in RPG games. Don't be afraid to use free models when necessary, just make sure your entire place isn't made out of them. And as always, be sure to use your imagination!
Treasure Box ..That's as far as i know the most expensive via.Hunting.and selling to NPC
I am pretty sure that a some NPC gives you Charmander when you beat a certain Gym, the NPC should be in the same city, its the same for bulbasaur and squirtle, there are 3 different NPC's outside 1 or 2 gyms that give you the Pokemon if you defeat the gym leaders. I got Bulbasaur by defeating (?Lt. Surge?) and talking to an NPC in the same town.
Talk to the banker NPC in-game about your key, should give you the option.