How to shiny hunt using Headbutt (normal) in Pokémon Crystal.
Headbutt trees on the standard table.
Odds with charm
1 / 8,192
Odds no charm
1 / 8,192
Per encounter
~24s
Expected hunt
2.3 days
How the hunt works
Headbutt, resolve the encounter, repeat. Tree location decides which table you roll on.
The base rate in Pokémon Crystal is 1 in 8,192. There is no Shiny Charm in this game, so the base rate is the best you can get.
Pokémon you can find with Headbutt (normal) in Crystal
12 species, sorted by best encounter rate.