All upgrades are free.
This game will take you to the fish world post apocalyptic. The fish, the main character of the game has survived the devastation caused by the war in 1952. The fish has to take down hostile creatures and survive all the encountered threats. There are useful upgrades to avail during the game play. The game can be played in adventure mode or survival mode. It is not over yet.
Use your mouse to move across the enemies repeatedly to chomp them. Click left mouse button to activate power skills after upgrades.