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(↑ Back to the GlitchDex index.)

Pokémon Crystal equivalent
????? (00)
← Previous glitch Pokémon Current glitch Pokémon Next Pokémon →
????? (FF) ????? (00) Bulbasaur
N Pentamark.png
S GS000 front.pngGen II male player backsprite.png
Index number (hex) 00
Index number (dec) 00
Pokédex number
Type(s) Steel/éé 4. E é. 4& h 'l $ ( ' $]é 'dV A9$ x
Base happiness 120
Egg group Water 2/Group 0
Color Brown
Catch rate 14/256
Experience group 0x80 (identical to Medium-Fast)
Level 50: 125000 experience
Level 100: 1000000 experience
Experience yield 255
Footprint FP256.png
Gender ratio Male if Attack DV>0
Wild held item
Sprite dimensions 14x0

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.

N Pentamark S.png 00 (????? 00) is a dual-type Steel/éé 4. E é. 4& h 'l $ ( ' $]é 'dV A9$ x (type hex:F1) glitch Pokémon in Pokémon Gold and Silver, with an index number of hex:00 (dec:00).


By level up

(No known moves)


TM Move
TM02 Headbutt
TM03 Curse
TM06 Toxic
TM08 Rock Smash
TM17 Protect
TM19 Giga Drain
TM21 Frustration
TM25 Thunder
TM28 Dig
TM31 Mud-Slap
TM37 Sandstorm
TM38 Fire Blast
TM39 Swift
TM40 Defense Curl
TM45 Attract
TM49 Fury Cutter
TM50 Nightmare
HM05 Flash

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

Base stats

Base stats Level 50 stat range Level 100 stat range
HP: 224 284-330 558-651
Attack: 1 6-52 7-100
Defense: 188 193-239 381-474
Speed: 67 72-118 139-232
Special Attack: 163 168-214 331-424
Special Defense: 213 218-264 431-524

Pokédex entry

N Pentamark S.png's Pokédex entry may be filled with many 9s. Registering this glitch Pokémon in the Pokédex sets bit $07 of $DC03 and $DC23; the last 'own' and 'seen' Pokédex bytes respectively, however it does not appear as a selectable Pokémon in the list when the Pokédex is opened.

Pokédex entry


N Pentamark S.png has been observed to evolve into a Nidoran♂ at level 1, however the evolution does not always take place and may depend on internal memory.


When this N Pentamark S.png 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 0100EDD0 is enabled from within the battle, then it is possible to capture the N Pentamark S.png and register its Pokédex entry if bit 7 of $DC23 is not set; but unexpected battle behavior may follow the nickname prompt; reportedly including an enemy Trainer switching Pokémon, or N Pentamark S.png fleeing.

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.

In Pokémon Silver it has the mini-sprite of a Slowpoke, unlike Pokémon Gold it has an animated 'glitch block' minisprite.

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.