It is a game that manipulates bacteria and makes the bacteria of the text pop.
Control characters: Salmonella / House dust / Clione / Daphnia / Helicobacter pylori
Text: planaria
You can put a character there by tapping the field with the operating character selected from the button on the right of the screen (a blue circle is displayed). The number next to the button is the remaining number of times you can place it. Immediately after starting the game, characters can only be placed in areas that are flashing red.
They're bacteria, so if you leave them alone, they'll multiply.
If you tap the field with the finger mark button selected, a red circle will appear. The character inside the circle becomes operable and can be directed to the next tapped point.
The game is cleared when all enemies are destroyed.