give a Pokemon a ambulet coin and fight a lot of trainers u should get alot
A Lot
by selling items or battling trainers
by selling items and battling trainers
You'll find a lot of magnemites and voltorbs.
There's many kanto Pokemon in ruby not a whole lot but there's a select few you can capture like rhyhorn, oddish, gloom and many more.
Pokemon ruby's version IS Pokemon ruby.
The Pokerus I believe appears only in 4th Generation. If it does exist, then you'll need to battle a lot and lot of wild Pokemon. All it takes is a lot of luck!
well you can make a Pokemon hold a master ball and clone Pokemon
Probably but it would take a lot of time
walking a lot of steps like 11000000 steps
Pokemon Ruby has Pokemon that Pokemon Sapphire does not and Pokemon Sapphire has Pokemon that Pokemon Ruby does not.
there are lots so i cant tell u all of them but there is a lot (hope this helps)