Left-facing shore tile glitch
The left-facing shore tile glitch is a glitch in Pokémon Red and Blue, that allows the player to encounter Pokémon in the wrong place. The Pokémon originate from the last location with grass tiles visited in memory.
A few 'left-facing shore tiles' may bring up a Pokémon from the last area that the player visited, either when the player either surfs on them, or walks on them (via a walk through walls glitch, such as the ledge method).
In the Italian and Spanish versions of Pokémon Red and Blue, the trick works, but the player has to use a walk through walls trick (ledge method) and walk on the left-facing shore tile, otherwise (if the player was just surfing) they will encounter Tentacool.
In the French and German versions, the left-facing shore tile glitch works normally. In all versions of Pokémon Red, Green, and Pokémon Blue (Japanese), as well as Pokémon Yellow the glitch seemingly does not occur. In these versions, apparently no Pokémon can be encountered on the shore tiles that work in other versions.
Working shore tiles
- The tiles directly east of Cinnabar Island.
- The tiles east of the right-most Seafoam Islands cave.
- The left-facing shore tiles in a Sea Route 19 Glitch City.
Applications
1. Battling Safari Zone Pokémon in the normal battle mode. It is referred to by Nintendo as the "Fight Safari Zone Pokémon trick".
2. The old man trick lets you store your name data in the grass tile data. This allows you to encounter certain, and often, high or over level 100 Pokémon, including a few rare Pokémon like Mewtwo, as well as glitch Trainers and variants of the glitch Pokémon Missingno. 'M (00) is also possible, but it cannot be encountered with a pre-set name that was chosen from the new game screen and wasn't input manually.
Missingno. and 'M (00)'s invalid encounter flags enable duplication of the sixth item after encountering them or capturing them, provided that there are less than 128 items in the sixth slot.
In German Red/Blue, the letters Ä (hex:C0), Ö (hex:C1), Ü (hex:C2), ä (hex:C3), ö (hex:C4) and ü (hex:C5) can be entered on the 'your name' screen, and these can be used to encounter glitch Pokémon with index numbers from 192-197 if one of the letters is the third, fifth, seventh, ninth or eleventh character, but the hex:C2 and hex:C5 glitch Pokémon (may) freeze the game on encounter.
The old man trick can be used to convert the fourth item into a few other items if the player has a name that lets them encounter a Trainer, and the identifier of the fourth item is not $1X, $3X, $5X, $7X, $9X, $BX, $DX, or $FX. This requires fighting a Rocket on Silph Co.'s 11F first.
The Trainer has level 250 Pokémon, and may use a Super Glitch inducing move, so a high level Pokémon with a one-hit KO move, X Speeds and an X Accuracy is recommended as it's otherwise impossible to defeat all of their Pokémon in one hit, and after the Super Glitch effect happens, the Trainer can send out the Pokémon that just fainted.
For more information, see 94's item conversion.