I have a suggestion...
i would suggest using a ROM unless you have a Gameshark and an extra R/B
Game...
You need: Walk through walls (optional), know the missingno glitch, and catch trainers pokemon
Start a new game..Name your character G get your starter and preform the missingno glitch (DO NOT GET A SILPH SCOPE BTW) Go to Cinnibar and missingno should appear. *BUT* It will be ghost. Do not comment me saying "it destroyed your game or whatever. REMEMBER I WARNED YOU!
Hope I helped
~TheHedgehogGamer <---Youtube Channel