I think those are very strange for a pokemon game....
1. If a traveler is going through a desert in the thick of night, Cacturne will follow in a ragtag group. The Pokémon are biding their time, waiting for the traveler to tire and become incapable of moving. (Pokemon Sapphire version pokedex entry)
2. You probably know that in japan there was a game called Pokemon green version. Just see the game's sprites.... Here are examples...
so this one can be locked....
