Update after having a Lunch break :)
Process 2
-Load the game and start the journey from Pewter City.
-Finish Mt.Moon and now Cody is lv.21.
-Reach Cerulean City.
-Fought Rival and go through Nugget Bridge.
-Beat all the trainers before meeting Bill.
-Help Cody and get the ticket.
-Beat Misty with lv.28 Cody. Was pretty lucky tho, had 2 gust crit :)
-Battle all the way to Vermilion City and get in to S.S Anne.
-Battle all the trainers in S.S Anne and thrash out my Rival.
-Scrub the old man's back and get a Cut HM.
-Caught a Oddish for the HM Cut.
-Beat LT.Surge with Cody's Psybeam easily. Cody is lv.35.
-Saved.
Team:
Cody / Butterfree m lv.35 @ -none-
Timid Nature / CompoundEye
-Gust
-Sleep Powder
-Whirlwind
-Psybeam
things get pretty simple once after misty. surge is not a problem at all, i 3hko his raichu with psybeam but the shockwave does cause me some damage .
EDIT : UPDATE UPDATE
Process 3
-Start off from Vermilion City.
-Beat all trainers in route 9.
-Walk through the Rock Tunnel(it's the most frustrating tunnel ever !)
-Went into the Pokemon Tower and beat that sucker(rival).
-Battle all the trainer in route 8.
-Went to Celadon City and swept Erika with ease. Cody is now lv.44
-Get in Game Corner and found out Rocket's Hideout.
-Beat Giovanni and his gang. Got the Silph Scope of course.
-Got HM Fly from the house in route 16.
-Caught a Dodou for the sake of fly.(Wondering why Butterfree cant learn fly while a wingless Dodou can :\ )
-Fly back to Lavender and move to Pokemon Tower.
-Made Marowak rest in peace and save Mr.Fuji and obtained PokeFlute.
-Use through the Cycling Road and reached Fuchsia
-Beat Koga at lv.51 Cody.
-Got tea for gramps in the Celadon Mansion.
-Gave it to the guard and move to Saffron City.
-Saved.
Team:
Cody / Butterfree m lv.51 @ -none-
Timid Nature / CompoundEye
-Aerial Ace
-Sleep Powder
-Silver Wind
-Psybeam
replace gust with aerial ace cause aerial is a better move than gust and butterfree last learn move silver wind helps me alot. I'm getting to like bugs pokemon :D
EDIT : More Update , Why is this thread getting dead ?
Process 4
-Start off my journey at Saffron City.
-Get in Fighting Dojo and psybeam all the way.
-Went in Silph.Co beat Rival and Giovanni.
-Went to challenge Sabrina with lv.59 Cody.
-OHKO Sabrina's entire team.
-Get in Safari Zone to get Gold Teeth and HM Surf
-Gave Gold Teeth to Warden and got HM Strength
-Fly back to Pallet Town and surfed to Cinnabar Island.
-Beat Blake with lv.61 Cody.
Sleep Powder sure is handy :D
-Move to One Island and done the savin' the small girl quest.
-Fly back to Viridian and beat the hell out of Giovanni !
-Beat my rival at route 22 again.
-Walkthrough the Victory road. Cody is now lv.72
Battle Summary
Lorelei : Pretty annoying with those Ice Beam/Ice Punch . I lost quite few times tho. Cody had leveled to 75 before I could win her.
Bruno : Now now... Rock types.. Which is another weakness to Cody. Lucky Cody's lvl is pretty overlevel and barely tank the Rock Tomb.
Agatha : Finnaly a easier type, Ghost/Dark. Before this I spent 90k PokeDollar on buying a Shadow Ball TM in the Game Corner. Luckily it does alot damage on them.
Lance : Stupid type, Dragon.. This round I kept spamming sleep powder and full restore ! Pretty lucky that he missed 3 round of Hyper Beam from his gyarados . His Dragonite was the major pain !!
Rival : I saved the game before I fight this bastard. Re load few times due to his Rhydon's Rock Tomb. It give me serious damage. His Venusaur was pretty easy . I had to slept Arcaine everytime he woke up. Almost killed me and barely survived ! Alakazam and Gyarados wasn't giving me alot problem. His Pidgeot was sent first so I just slept him n keep on Psychc .
Sorry for the size. Didn't crop propelly.
Team :
Cody / Butterfree m lv.77 @ Brightpowder
Timid Nature / Compoundeye
-Aerial Ace
-Sleep Powder
-Shadow Ball
-Psychic