Nice to hear you liked our game!
To run out of oregano on the first run is actually what we intended the player to experience :) If we find some time to update the game, we would like to make the enemies more offensive, so that it is a bit more challenging to save the oregano for the boss. At the moment, you can easily walk to the boss almost without shooting once.
Yes, this trick you found is something we would like to correct, as the real pattern to beat the boss is to go hide behind the tree that is on the opposite side of his first movement. If we get some time to update the game, we would make the direction random (for now the boss always goes to the left), with an tiny animation (a telegraph?) that indicates which direction the boss will go.
Thanks! We are definitely up for another game jam, it was a lot of fun !