Snowball (Event Enemy)

Snowballs are "environmental hazards" that appear in the Cats in the Snow Event.

Enemy

 * Snowballs that are thrown from the Enemy's Castle to the Cat's Castle with really high speed.
 * The most annoying enemy in the event: they remain on the ground after they hit a Cat Unit and need an attack from the Cats to actually clear them out, which is a disadvantage for players that bring many Cats that attack one enemy at a time.
 * Their damage increase as the player progress through the event. The third stage in the event has snowballs spawn at ridiculous rate.

Strategies

 * Good defense is necessary to encounter the snowballs.
 * Snowballs can be cleared when they are flying to the Cats by any kind of attacks.
 * Metal Cat can be useful against them.

Reference

 * http://battlecats.spica-net.com/enemy/310.html