Kongol

I asked this in another thread, but I took it down because I think some of the other questions I asked were cringe lol. However, I wanted to ask y’all about Kongol. I can’t recall how or if the game explained how he ended up back in his home from the Black Castle in Chapter 2. Wouldn’t he have needed the pass from King Zion to enter the valley of corrupted gravity? Maybe was he able to climb the mountain on his own because he was a giganto?