Use your super rod in sootopolis city behind the gym.Good luck!I found mine at level 38.
You can't catch a sentret in Ruby version, but you can catch one in Emerald version.
You can't.You have to trade it from Pokemon Ruby Version
It doesn't matter what version it is. Magikarp evolves at level 20.
I am sorry to say this but, you cant catch any of the Pokemon in platinum in ruby unless it is a hoenn Pokemon.
No you cant you can only get it in ruby version.
You have to trade with another version of pokemon.
Yes, it is !
i think the Pokemon that evolves into gyarados is magikarp. it evolves at level 20
You can't: you can only get it in a trade from a person with either Pokemon sapphire version or emerald version.
Pokemon ruby's version IS Pokemon ruby.
Kyogre is not able to be caught in Ruby Version.
Use pokeballs.