Overview:

FART BUBBLE DX is a puzzle game with strong random elements that focuses on the situations of “farting” and “holding in the urge to poop”.
There is no direct depiction of scat, genitals, or anus. However, ass is exposed, so it is rated R18.
There are three characters. The picture you see when the game is over or cleared differs depending on the character.

How to play
Aim for the toilet without being noticed by your fart.
The number written on the bubble is the level of your fart. And the number written on the passerby is your “notice count”.
When you click to pop the bubble and fart, the number of that level is subtracted from the “notice count” of the surroundings.
In other words, if you fart many times or fart loudly, you will be more likely to be noticed by passersby.