List of glitches (Generation I): Difference between revisions

[[Lorelei]]'s room in [[Indigo Plateau]] also has this issue, which was too fixed in Yellow.

Celadon Hotel is based on a design of a [[Pokémon Center]]. In this map, if the player stands in front of where the PC would be in a Pokémon Center, the player can access an invisible PC.

There are also invisible PCs in the same position (accessible by facing up with the coordinates x=13, y=4 xblock=1, yblock=0) at [[Kanto Safari Zone|Safari Zone]] rest houses 2, 3 and 4 ([[List of locations by index number (Generation I)|maps 223-225]]), but these positions are not normally accessible, so memory hacking must be done. The extra PCs are accessible without cheating though, as [http://glitchcity.info/wiki/index.php/Invisible_PCs an 8F code] has been written.

====Item duplication====

{{main|Item duplication glitch}}

====Second type glitch====

All glitch items are available with the [http://www.youtube.com/watch?v=w4Yr2Nz4rFU number of items underflow glitch]. Lg- is also available through [[pPkMnp' ']] (Ditto glitch Special 194) converting a Super Rod when it is the fifth item.

When the walk through walls glitch is used and the player flies to [[Lavender Town]], they can activate this glitch. They must walk down to {{rt|12|Kanto}} and walk through the side of the gate rather than actually going into the gate. Once this has been done, every [[Non-player character|NPC]] will have the same sprite as the player. Encountering a [[wild Pokémon]] fixes the sprites. This is due to the fact that the game haven't loaded the sprite graphic correctly.

In Link Battles, Counter may also trigger desynchronization errors. This occurs due to the last move pointed by the cursor in the move selection menu being treated by the last move actually used if the Pokemon switches out. This oversight can also be exploited outside of link battles to make the opponent's Counter hit or miss at will under specific circumstances.

The game prioritizes on which message to display for each 'special' scenario (where normal damage is not dealt) based on each scenario's internal ordering. The higher the ordering determines what message the game will display. Grass against Water as 200% damage for instance is the 4th entry, whilst Grass against Flying as 50% damage is the 27th. Consequently in this example the game chooses the message for scenario #27, returning the wrong message "It's not very effective...".

In Generations I and II, level 1 Pokémon using the "medium-slow" growth algorithm will jump from level 1 to level 100 after gaining a {{tt|low amount|less than 54 if total experience is 0}} of experience points.

If a Pokemon that has just used {{m|Hyper Beam}} and has yet to recharge is targeted with a sleep inducing move, any other status it may already have ({{status|paralysis}}, {{status|burn}}, {{status|poison}}, or {{status|freeze}}) will be ignored and sleep will be induced regardless. In addition, the sleep inducing move will never miss, as it will skip any accuracy checks in a similar way to {{m|Swift}}.

If the player attempts to leave too many times when choosing their first Pokemon then the player, Prof. Oak and the middle Poké Ball's sprites will vanish. Pressing start will pull up some glitched text on the screen, but exiting the start menu will fix everything.

If the player saves the game having just entered the Safari Zone and leaves, the game assumes that the player is just entering the Safari Zone entrance, as it does not save that the player is currently in a paid Safari Zone session. Thus, upon passing by the desk, the player is prompted to pay for another Safari Zone session, although they are now traveling out towards the town below. Because the player is supposedly in a Safari Zone session, the game counts down steps passively. Upon exiting towards the bottom into Fuschia City, the player must Fly to Viridian City and enter Giovanni's Gym. Inside, the player must walk along the spinners, proceeding to be spun around. After taking enough steps to deplete the (invisible) counter, the player freezes, the PA "ding-dong" noise will sound, and a message will pop up saying that the player's Safari Zone session is now over. If the player is in the middle of a spin while this happens, the player will be transported to the Safari Zone entrance as if they had just left the Safari Zone, and upon moving will perform the spin animation, and move slower. The player has full control over the movement of the character, the only difference is that instead of the walking animation, the spinning animation is played.

If a level 0, 1 or 171 Pokémon uses {{m|Psywave}}, the game will continuously generate pseudo-random numbers, hanging indefinitely. However, this is not an issue in normal gameplay, as Pokémon can only be obtained at these levels via glitches.

Memory address = [First item position address -1] + [Cursor positon] + ([Cursor position -1])<ref>[http://forums.glitchcity.info/index.php/topic,6472.msg187703.html#msg187703 Glitch City Laboratories - Pokémon Yellow "Save Abuse" Glitch thread - post by Torchickens].</ref>

Every time a Pokemon successfully uses a move that affects a stat stage (either raising for example with {{m|Double Team}}, or lowering it for example with {{m|Screech}}) of any of the two Pokemon in battle, the following happens:

* If the target was the player's Pokémon, [[badge]] boosts are applied to all of its stats, boosting them by 1/8.

* If the Pokemon whose turn it is not is paralyzed, its current Speed stat gets quartered.

* If the Pokemon whose turn it is not is burned, its current Attack stat gets halved.

* Whenever one of the player's Pokémon's stat stages is modified, all of its other stats receive a badge boost (being multiplied by 1.125), even though they were already boosted. (The affected stat is recalculated correctly.) This effect can stack until a stat reaches the maximum of 999.

* When a Pokémon is burned or paralyzed, the Attack/Speed drop from the status will be applied again whenever one of its opponent's stat stages is modified. This will similarly stack until the stat in question has dropped to the minimum of 1.

If a Pokemon with a Substitute up hurts itself due to confusion, or due to {{m|Jump Kick}}'s or {{m|High Jump Kick}}'s side effect, damage will be dealt to the opponent's Substitute instead. If the opponent doesn't have a Substitute up no damage will be dealt to any Pokemon.

===Johto guard bypassing===

{{main|Johto guard glitch}}