Spongebob Defense

Fortress Defense rests only on Sponge Bob. He is well- armed against the plankton, which never ceases to attack the fortress. If they break through the defense, all the people will perish. Use the gun to destroy the suitable opponents. With the accumulation of sufficient funds, you can buy new weapons that will be much more powerful than the previous ones. Also pay attention to the overcharging, do it in time, otherwise the enemy will break.