1) If you use the knife to fight it will break and vanish.
2) if you use too much gun powder the gun will explode and vanish.
3) if you eat the white cucumber looking fruit raw it will poison you.
4) the ocean has invisible barriers if you go too far, so you can't get to the ship by water.
5) being in the dark without a light will kill you.
6) most paths with rocks on both sides are dead ends.
7) you cannot climb onto the logs if you climb up the ropes hanging down.
If these are incorrect ... prove it! please