The 狱火球 is a 困难模式 悠悠球 that has a 1:400 (0.25%) chance to be dropped from any 敌怪 in the bottom half of the 洞穴s or 地狱. It has a chance to inflict the 着火了！ 减益. It can be considered the Hardmode upgrade of the 喷流球.
Its best 修饰语 is 神级.
- While not as powerful as 冰雪悠悠球, Hel-Fire is arguably easier to acquire (as the Underworld is initially unaffected by entering Hardmode) and can be a great early-Hardmode option for yoyo users or melee players in general.
- Using the Hel-Fire while wearing 寒霜盔甲 allows you to damage enemies with both the On Fire! debuff and inflict 霜冻 debuff.