Snowman activated lights in boss arena now power a shield that maintains the Snowman's ice armor, Killing a round of minions will disable the shield, preventing minion spawns for a short duration to allow the ice armor to receive damage. When minion cooldown is over, shield reactivates. When ice armor reaches 0, Snowman's health can be damaged directly and no more minions will spawn until the next health state.
Upon entering each new health state, 1 extra minion will spawn at a time, and an increased amount of minions will be required to be killed for the shield to be deactivated/start minion spawn cooldown. When in the last health state and ice armor is destroyed for the final time, chaos ensues, and minions will continue to spawn until the boss is killed. Progress of minions to kill and ice armor are shown via floating hud.