(Variable name) (0xC3) (move list name obfuscated by its type B Enemy (PKMN)W n L:C O (RIVAL)C (0x42)) is a glitch move in Pokémon Yellow. It is capable of causing Super Glitch.
If Super Glitch does not succeed (or is forced not to by forcing a 0x50 sub-tile early in the screen data after opening the items or Pokémon menu in battle with GameShark code 0150A0C3 or OAM DMA hijacking), then a successful hit with this glitch move will lower the foe's Special stat by one stage with Slam's animation. If the move does not hit it will result in the "But, it failed!" message.
Glitch Pokémon which learn (variable name) (0xC3)
♀ . (0xC1) (Level 214) p PkMnp' ' (0xC2) (Level 100) ゥ ( Z4 (0xC3) (Level 241) u (0xC7) (Level 175) 4, ゥァ (0xCF) (Level 71) ゥ' (0xD0) (Level 214) PkMn ? A (0xD2) (Level 175) ゥゥ] (0xD3) (Level 175) ₽ pゥ. 4( (0xEE) (Level 71) 'B' ゥ (0xF1) (Level 103) ♂ p ゥ (0xF4) (Level 241) F q , (0xFB) (Level 12)