Journey
In Pokemon Red/Blue, the player journeys through Kanto, defeating Gym leaders along the way to obtain the badges required to face the Elite Four and Champion. A typical journey starts at Pallet Town to obtain their starter Pokemon. After some adventuring, the player tackles the first gym they encounter, beating Brock to get the Boulder badge. Subsequently, they beat Misty in Cerulean City for the Cascade badge then Lt. Surge in Vermilion City for the Thunder badge
Um actually what you wrote didn't say that the first gym you encounter is Brock it said the "player tackles the gyms in the order they encounter them", which really suggests the possibility of doing so. Poorly worded
what you wrote didn’t say that the first gym you encounter is Brock
It's a bit complex of a construction for the correction.
My idea was that it is a composite of 2 statements which makes it factually incorrect.
the player tackles the Gyms in the order they encounter them
starts with beating Brock
These statements together, implies that the first gym encountered is Brock.
But point taken, not sure why I didn't just say that the first gym encountered was Brock's. It feels a bit round-about now that I think about it. I've improve the OP accordingly, thanks for the feedback.
Fantastic fix that clears it up and makes the correct answer very clear!