Puppet octopus (the center) to the left and right, you spitting ink at the top and bottom of position depending on the timing of press and hold the black button (right).
Jellyfish and squid on the screen is captured and hit the ink, to stop the movement.
By targeting the ink that is captured again, to fully capture their prey.
The number of simultaneously runs off ink on the screen are four.
Or jellyfish is moved to the bottom of the screen, the game is over and hits the electric shock to vomit of jellyfish.
Becomes the surface cleared by annihilate the jellyfish, the difficulty level will rise.
By all means, please play aiming high scores.