Any Pokémon that faints is considered dead, and must be put in the Pokémon Storage System permanently.
Catch one Pokemon per area. There are no second chances if it faints or flees.
If the first encounter in the area is a Double Battle or an horde in the grass, the player may choose which of the two Pokémon they would like to catch.
If you encounter a shiny pokemon, then this rule does not count and you can catch it if you like even if you already have caught a pokemon in this area.
Dupe/Species Clause do not count as an encounter, except if the dupe/species clause that you have is already dead.
If you fail to find a new pokemon and keep encounting a dupe/species clause three times in a row, then there are no second changes either.
Nickname all your captured pokemon.
A black out/white out is an "Game over"
Resetting and reloading the game is forbidden!
No catching Legendary pokemon
If you don't have any pokemon who can learn a HM, then you can catch a pokemon from any area who you can use as an HM slave until you caught a pokemon who can learn that HM.
No running away and use of repels.
No use of online resources.