>>53827948I recently replayed Crystal and it has a pretty weird roadblock.
So you get to Kanto, and one of the first things you see is the Snorlax, so you can't get to the other side of Kanto. If you go to Fuchsia to try and reach Cinnabar and Pallet, there will be a lot of rocks blocking you from surfing down. Once you get rid of the Snorlax, the rocks simply disappear.
