The Unused Tree Encounters of GS

[jojo12100]

Hi,

yesterday I was watching a video on Youtube that said in GS in some cities (New Beak, Violet, Ecruteak, Mahogany, Blackthorn) there were programmed tree encounters with Magnemite, Venoat, Venomoth and Abra but due to some coding error they are unobtanaible.

https://bulbapedia.bulbagarden.net/wiki/Headbutt_tree

 

I tried to check if we can get them using ROM hack tools of that time (GSC Editing Tools, PKSV, ...) however none can actually edit the Headbutt trees encounters.

 

Here are my theories on how to get them :

-by recompiling the Gold ROM version using the moddified asm file I put here you can get them in Lake of Rage.

-by creating a code to unlock the encounter in the cities, according to the Grate Oracle Lewok it should do something like this

GetTreeMons:
    cp NUM_TREEMON_SETS
    jr nc, .quit

    ld e, a
    ld d, 0
    ld hl, TreeMons
    add hl, de
    add hl, de

    ld a, [hli]
    ld h, [hl]
    ld l, a

    scf
    ret

.quit
    xor a
    ret

-teleport to the beta versions of the cities to check if there you can get them

 

Anyone wants to help ?

treemon_maps.asmFetching info...

Edited March 24 by jojo12100

[jojo12100]

Ok so basically the recompilation is not necessary but we need to find the code to allow the encounter to happen or disable the one that prevents that.

If you're only interested by the pkm here there are.

I think this bug could be very usefull however for speedrunners or people searching for Metal Coat.

 

0048 - HEADBUTT - 7584.pk2Fetching info... 0049 - HEADBUTT - DF38.pk2Fetching info... 0063 - HEADBUTT - 1DE2.pk2Fetching info... 0081 - HEADBUTT - 6E8A.pk2Fetching info...