no, you don't need to. You proved yourself master after beating Steven.
after beating the elite 4 go find it
Beat then one at the time
Typically, Pokemon Liquid Crystal should not freeze after beating the Elite Four. You may need to restart your system before you fight them next time.
To up your Pokemon's to 100lv you have to fight the elite 4 100 time ......
Yes, he comes back and you can fight him again after beating the elite 4. Whenever you beat the elite 4 it kinda resets Red.
After beating the Elite Four + the Champion go to Snowpoint city and you will see rival and he will invite you to go to the Fight Area.
When you finally manage to fight him, his Pokemon will be levels 75 to level 77. But after beating the elite for twice to get to him you should be fine.
Either train in the waters near Sootopolis (the swimmers) go to Victory Road, or fight the Elite Four with no intention to win and just gain experience by beating some of their Pokemon. The last option is by means not as expected, but it does get the job done efficiently.
Find Your Way Through Victory Road It Will Be There.
You can get it by beating blue the last Kanto gym leader wich you can fight them beating the elite four and then oak will call you and if you visit his lab he gives you HM 08 Rock climb
You probably go to and snow point city and ride the boat and go to the fight area or something. =]
no you can not that's wy before you go in you load up on supplies