The Legend of Crystal Valley

i have gameboomers walkthrouught, but there is a mistake it says Go to the right and approach the cage: see a creature inside. Nothing much, but big fish walkthrought says Open up your inventory, select the hairpin, and use it to open the cage.
Examine the newly freed creature. , did the person not want to free it even gamezbo walkthrought says Open your inventory and select the hairclip, then click on the cage to pick the lock and free the creature. Once it’s free, click on it to examine it.

As far as I can tell those are different cages.
One has a skeleton inside.
The other has a creature that is still alive.

Even if it is somehow the same creature, is it necessary to free it to finish the game?
If not, that means both walkthroughs are correct.

i like to free it, because when janice does cooking class, brandy the dog is under our foot, and the cat is hiding, i made be strange, but i am happy.

Well I'd like to free it too, unless it is poisonous or something.

the first time she ask him to fix the wheel the blacksmith yells at her, the second time when he sees his is creature free he is nice and sweet to her, that is why i like to free it. i refuse to do the other.