Are people able to look at the coding of Pokemon XD: Gale of Darkness?

[Paper Mario Sticker Star]

Bulbapedia said Miror B's Voltorb disappears forever if you don't catch it in the cave.

https://bulbapedia.bulbagarden.net/wiki/List_of_glitches_in_Generation_III#Shadow_Voltorb_Catch_Bug

I caught Voltorb when I played through this game, but looking up online, other people seemed to have trouble with Voltorb not showing up. Can someone verify for real?