Show your love for the popular game Undertale with this black T-shirt. Featuring a pixelated design of Sans with his signature glowing blue eye and Gaster Blasters, the shirt also includes the ominous phrase "You're Gonna Have a Bad Time". Made from comfortable, breathable fabric, this tee is perfect for casual wear, gaming sessions, or conventions. Express your fandom and make a statement with this unique Undertale T-shirt. Available in various sizes. A must-have for any Undertale fan's wardrobe!