The Thai iteration of Taco Bell only has two options, a steep drop from the four options stateside (five if you count their breakfast salsa, which I personally don’t). Here, the Hot and Fire sauces have been changed completely: the acidic and sweet qualities have been dialed back to make them incredibly spicy. When I asked Tuli about the change, he tried to explain the spice methodology by scale, saying that if you consider the sauces on a spice scale of one to ten with the hottest American sauce at about a one, the Thai sauces would rank around a four.