The Hiisi will typically attack all other enemies, but will not attack other Hiisi. Tulihiisi use their fire immunity to stay alive while throwing cocktails that spill Liquid Fire everywhere, creating an inferno. While they will not throw them at other Hiisi, the rapidly spreading burning liquid makes friendly fire common.
- The cocktails it throws are Flasks, so if they land softly (in a liquid pool, for example), they won't explode and the player can collect them for their own use.
- It is also possible to hover over them a safe distance and catch the cocktails when they reach their apex.
- These cocktails can pour liquid fire, but cannot be refilled. Will explode if thrown, even if empty.