Ice-shroom is a appearing in Plants vs. Zombies. When activated either through normal planting in Night and Fog levels, or through waking up via Coffee Bean in levels with daylight, Ice-shroom will freeze all enemies currently on the field, deal 1 normal damage shot worth of damage and stunning them for 3.25 seconds. Afterward, the affected targets will continue to be chilled for another 16 seconds, during which their movement and attack speed are halved. In the iOS versions of the game, freezing 20 full-size enemies with a single Ice-shroom will give the player the 20 Below Zero achievement.