Fantas 2023 Halloween-themed "What the Fanta" flavor is a mystery flavor, and there are different opinions on what it tastes like. Some people think it tastes like blackberry, while others describe it as grape, orange, or a mix of different fruit flavors. The drink is black in color and has a very fizzy texture. It is also reported to have an artificial sweetener aftertaste that some people find unpleasant. The drink is part of Fantas "What the Fanta?" campaign, which features mystery sodas with flavors and colors designed to "fool the senses and challenge tastebuds with opposite flavor notes". The campaign invites customers to guess the mystery flavors on social media. The Halloween-themed drink is not the first "What the Fanta" flavor, and the previous one was released in 2022 and was orange cream flavored).