This week I did a lot more than last week, I figured out Bigfoot's behaviors and I worked a lot on the world generation to optimize it. I added the stone PickAxe before you were not able to craft it.
Run away when you are close.
If you attack him with a ranged weapon like a bow he will come and find you.... be prepared. He will be attracted by berries and bushes.
The world will be separated into different huge chunks. When they are in sight, they split in normal chunks, when you go away, these big chunks reassemble themselves.
See you next week :)