Cuttle Invasion

Your task is to beat off the assaults of cuttles. You are playing by means of a little fish, whose function is to help another fish - the shooter - to prevent defense penetration. Catch the ink ejected by cuttles and save it up in the ink container to be used by the shooter to fight off an attack of the cuttles. Upgrade your weapon, physical parameters, durability of the wall, etc. Good luck with the battle!