Wrong warp Glitch City
Glitch City is the name used to describe the collective of the different Glitch Regions within the Pokémon Red/Blue/Yellow series of video games.
To access any one of these Regions:
Step 1:
First, go to the Safari Zone and walk around a little.
Step 2:
Then, try to leave. When the guy asks if you want to leave early, say no.
Step 3:
Next, go back inside and save your game.
Step 4:
Reboot the Game Boy, and then go out again. If the trick worked, the guy should say what he normally says when you try to enter the Safari Zone. Say no, and you can leave the Safari Zone.
Step 5:
Go somewhere else, and walk around for a while. Eventually, you will hear the PA go "Ding-dong!" just as if you were still in the Safari Zone. You will be returned to the Safari Zone building.
Step 6:
When you walk out, you will find yourself in Glitch City. Which Glitch City you enter depends on where you were when your time ran out. To go to the most well-known Glitch City, let your time run out on the eastern coast of Cinnabar Island, where you normally find MissingNo.
Glitch Regions:
Glitch City (Go to: Cinnabar Island Eastern Strait) Arguably the most well-known Region of this series, Glitch City is fairly navigable compared to other Regions. Do not try to cut down any trees or enter any caves - trees regenerate, and the cave... well, just stay away from the cave!
Glitch Mountain (Go to: Cycling Road) Glitch Mountain is also fairly navigable. Like in Cycling Road, your character is constantly moving downhill. Because of this, you cannot Surf on any of the blocks of water.
Glitch League (Go to: Indigo Plateu or Route 23) Glitch League is not as easily navigable as Glitch City or Glitch Mountain. You can only move around a very small area, but you can see pieces of statues, water, and all kinds of other stuff.
Jumping/Spinning Glitch is easy to do, but you must time it right. After saving and leave the Safari Zone, fly to the Viridian Gym. To spin, simply go inside and ride on the spinning arrows until you get called to go back. After that, you will always spin when you move until the game is reset. To do the [[[Jumping glitch]], you have to time it so you get called back while you are jumping over a ledge.