go to the mauville city bike shop!
go to the sky pillar with a mach bike and master ball(s)
a wingull that you can find in pokemon emarald
about $30
yes u can
By trading with other games.
Transfer from Emarald or use action replay.
Surf east from lilycove city.
You can only get it in the versions ruby, saphire, and emarald.
Dewford cave, second floor or lower.
No you can't. you have to trade from firered and leaf green
To get the bike in Ruby, Sapphire, or Emarald, just go to the bike shop in Mauvile city, which is to the right of the Pokemon center in Mauvile city. Talk to the guy on the left he will give you two choices, a Mach bike(goes faster but is harder to control) and an acro bike(goes slower, but can do wheelies, bunny hops, and can go across metal beams. Choose which bike you want and he'll give it to you.
you cant. you can only get it in sapphire,emarald, and ruby.