A cluster of 9 bouncy projectiles fired all at once.
The Sillyballs rather low damage and lack of projectiles may turn the weapon down in comparision to the other options of the roster, but in tricky situations, most of the time, you are guaranteed to deal damage to the enemy.
Just like all bounce-type weapons, use the Sillyballs against enemies trapped in a ground depression or a hole. Doing this will ensure that most projectiles will hit. The weapon won't damage the allies or yourself initially, but if they roam nearby the tanks for a while, they may eventually explode, and cause friendly fire.
Includes extra projectiles in the cluster.
Includes even more projectiles in the cluster.