Thanks for playing and for sticking with it past that. You found a real gap: the oil lines look like pipes, and nothing says the pipe itself is what you tap. Torches work too, so you can clear the first levels without ever finding out. I built a fix today for the post-jam update: on level 1 a pulsing ring points at the oil line until your first match, and the hint and how-to now say "oil line" and mention torches. Glad the two-match logic clicked once you saw it.