Dr. James

Other mistake: If you get all the Pokemon and talk to Oak, he'll say "Your POKEDEX is entirely complete Congratulations!". Between "complete" and "congratulations", there should be a period.

Dr. James

Other mistake: If you don't have the Silph Scope, you'll run into GHOSTs at the Pokemon Tower. However, in the middle of the battle, if you see any of your Pokemon's stats, and then return to the battle, the GHOST will be gone and you'll be able to see the real Pokemon behind it.

Dr. James

Other mistake: When taking the first step into Route 24, press Start. The first trainer of the Nugget Bridge will be standing in the water until you press Start again.

Dr. James

Other mistake: Between Viridian's forest southern and northern gates, there's a whole forest, but judging by the scenario shown outside the forest, it appears that between the gates there's just normal road.

Dr. James

Other mistake: Before winning the League, go to the man that doesn't let you enter to the Unknown Dungeon (Cerulean Cave). Go some steps to the left until you exit the city. Now look, that man has disappeared. If you return to the city, the man's there again.

Dr. James

Other mistake: Get a Pokémon with a Special of 21, and with a move that increases its Attack (as Swords Dance, TM03). Now do the Mew glitch, that is, fly or somehow escape at the same time one trainer sees you by scrolling the screen. Fight with any trainer, then go to Route 13, 14, 15 or 16 and search for a Ditto. Let the Ditto transform into your Pokemon with Special of 21. Now, wait for it to use the move that will increase its attack. It has to use it at least three times. Return to the route where you escaped the trainer. The menu will pop-up, exit and you'll encounter a Mew, however, it will be at least in level 10, and it will know TRANSFORM. Let it transform any of your Pokémon. Then catch it. The game will say you caught a Ditto, not a Mew. The Mew will be gone forever, and instead the Pokémon will be a Ditto.

Dr. James