Thrown potion balls that burst into instantly-hardening rock-like foam, trapping mobs and building barriers.
Biscuit Packs are thrown potion balls in the party's race arsenal — a thicker cousin of the Denial of Service missiles. Each bursts into a roughly three-meter foam-filled explosion that hardens in seconds to the consistency of rock, like instant construction spray-foam. In Heat Three the caged Jikininki ghoul mercenaries hurl them at the oncoming waves of Sugar Hermits, each pop snagging dozens of skull-mobs at once and popcorning into rolling barriers that blunt the swarm.
Designed as a broad-spectrum answer to unknown enemies, they can't stop everything but keep the truck from being overwhelmed.
Throwable potion balls that detonate into pale, popcorn-like foam that sets rock-hard in seconds.
Instant-hardening foam grenades used to trap swarming mobs and raise barriers.