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I am thinking about that If I don't take the Tequila Worm in Oubier's house at the start of the game, will I be able to finish the game?
The game allows to leave the house without the worm, but I remember that I will have to use it later.
The game will stop when I meet the boy Rio?

Anyone tried this before?
You can finish the game without taking the worm.

(minor spoilers)