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Generation II glitch Egg (Gold/Silver) (FD) ????? (FE) ????? (FF)

Please note that some of the data described here may not be fully reliable if it depends on the contents of writable memory, such as RAM; WRAM; SRAM.

G: Gold S: Silver
Bulbapedia link ????? (Gold/Silver FE)
Equivalent glitch Pokémon ????? (Crystal FE)
Equivalent Pokémon (Generation I) MissingNo. (0x38)
Index number (hex) FE
Index number (dec) 254
Pokédex number
Pokédex marker byte 0x80
Breeding result (when glitch Pokémon is female or paired with Ditto) Cannot breed
Type(s) Glitch (0x47)/B (0xFF)
Base happiness
Egg group No Eggs
Color Gold
Catch rate constant 0x00
Experience group 0xE0
Level 50: 322032
Level 100: 1314082
Experience yield 0x05
Gender ratio 75% male. Male if Attack DV>3 (12 males to 4 females).
Wild held item Card Key,
Machine Part
Sprite dimensions (add)

Tested mainly on Gold Version only.

(FE) (????? FE) is a dual-type Glitch (0x47)/B (0xFF) glitch Pokémon in Pokémon Crystal, with an index number of hex:FE (dec:254).

Attempting to capture it may result in a Glitch Dimension due to a problematic Pokédex entry, if its capture flag is not already set.

Its menu-sprites appear to differ between Gold Version and Silver Version but are still both invalid menu-sprites.


By level up

  • Horn Drill (Level 5)
  • Foresight (Level 9)


  • TM09 Psych Up
  • TM12 Sweet Scent
  • TM13 Snore
  • TM14 Blizzard
  • TM15 Hyper Beam
  • TM16 Icy Wind
  • TM18 Rain Dance
  • TM19 Giga Drain
  • TM24 DragonBreath
  • TM29 Psychic
  • TM30 Shadow Ball
  • TM31 Mud-Slap
  • TM33 Ice Punch
  • TM34 Swagger
  • TM35 Sleep Talk
  • TM36 Sludge Bomb
  • TM38 Fire Blast
  • TM39 Swift
  • TM41 ThunderPunch
  • TM42 Dream Eater
  • TM44 Rest
  • TM45 Attract
  • TM50 Nightmare
  • HM01 Cut
  • HM02 Fly
  • HM03 Surf
  • HM07 Waterfall

(Source: Yuzihax's G/S/C TM/HM list)

Base stats

Base stats Level 50 stat range Level 100 stat range
HP: 244 304-350 598-691
Attack: 0 5-51 5-98
Defense: 234 239-285 473-566
Speed: 0 5-51 5-98
Special Attack: 245 250-296 495-588
Special Defense: 0 5-51 5-98

Pokédex entry

This glitch Pokémon's Pokédex entry may result in a Glitch Dimension.

Type effectiveness

(Data not available)


????? (FE)

Level 12 →

????? (00)

Methods to obtain

  1. Byte shifting via (00) or (FF) (available through stabilizing a bad clone or arbitrary code execution) (e.g. byte shift a total experience of 254 or 65024-65279 (unconfirmed).
  2. Arbitrary code execution (e.g. through Coin Case arbitrary code execution, wrong pocket TM25).


When the player goes to deposit this Pokémon into a storage box, it may erroneously appear at Level 255 holding an item. Backing out of the menu may cause the game to freeze. This trait is shared with ????? (Gold/Silver FC).

This behavior does not occur for ????? (Crystal FC) or ????? (Crystal FE).

Additional sprites

The front sprites of this glitch Pokémon may be affected based on the location it is encountered, whether an item was used, and the previous enemy battle sprite.