The Pokédex number for is #205, which makes this glitch's National Pokédex equivalent Forretress. When encountered, seems to corrupt parts of the game's memory responsible
for sound, as it will terminate the battle music and load for a considerable time (longer than Missingno.) before appearing. can also replace the battle music with never-ending glitchy sounds that don't allow its cry (which is identical to Raticate's) to play, effectively locking up the game.
's Pokédex entry can be bypassed by having seen a Haunter.
When is sent into battle, the player will not be able to see 's moves, as the battle menu will be covered by a black glitch screen, the same one that covers its front sprite.
When appears in color in Pokémon Stadium, 's sprite will be red and surrounded by a black glitch screen.