Glitch City Laboratories Archives

Glitch City Laboratories closed on 1 September 2020 (announcement). This is an archived copy of an article from Glitch City Laboratories wiki.

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????? (FE)????? (FF)????? (00)
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.


Tested mainly on Gold Version only.

(FF) (????? FF) is a dual-type 'l) m) ZM (0x7C)/Normal (0x0C) glitch Pokémon in Pokémon Gold and Silver, with an index number of hex:FF (dec:255).

This glitch Pokémon and ????? (Crystal FF) can be used for the Time Capsule exploit.

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


By level up



  • TM03 Curse
  • TM09 Psych Up
  • TM10 Hidden Power
  • TM15 Hyper Beam
  • TM17 Protect
  • TM18 Rain Dance
  • TM19 Giga Drain
  • TM20 Endure
  • TM21 Frustration
  • TM22 SolarBeam
  • TM23 Iron Tail
  • TM24 DragonBreath
  • TM33 Ice Punch
  • TM41 ThunderPunch
  • TM43 Detect
  • TM44 Rest
  • TM45 Attract
  • TM48 Fire Punch
  • HM04 Strength
  • HM05 Flash
  • HM07 Waterfall

    Base stats


    Pokédex entry

    A white screen will appear before this Pokédex entry is displayed. It is required to press A to get past it.

    Type effectiveness

    (Data not available)



    Methods to obtain

  • Stabilize a bad clone to obtain (00), have a party of six Pokémon; and then bring the (00) to the top of the party. Then use move PkMn without Mail to bring another Pokémon to the top and take the into the Day Care Center on Route 34 and out. This will convert the into a (FF).
  • Arbitrary code execution (e.g. through Coin Case arbitrary code execution, wrong pocket TMs, glitch Pokédex categories).


    When this is encountered in battle, it may cause corruption of the memory beginning from $D000.

    This may change the battle style to a Link Battle. This disables the use of items and making a turn will result in a "Waiting...!" message which may never end. The Link Battle freeze can be avoided by setting the memory address D042 to 00 (or by using the GameShark code 010042D0).

    If the GameShark code 01FFEDD0 is enabled from within the battle, then it is possible to capture the and register its Pokédex entry if bit 6 of $DC03 is not set.

    This glitch Pokémon can be used to hide other Pokémon below it on the deposit and move PkMn w/o Mail menus, making it applicable for ????? party overloading.

    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.

    File:S C255 front cave.png|Sprite of {{GNS|Pentamark}} when it is encountered in a cave. File:S C255 front item.png|Sprite of {{GNS|Pentamark}} after using an item. File:Gen II player front silver.png|{{GNS|Pentamark}} taking the sprite of Pokémon Trainer Cal.