Here is the full list of all 19 Bubble People achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete Act 18, want to go back in time and try to keep the story going.
Complete Act 17, but can still hear the square's dancing music.
Complete Act 16, Spring River Plumbing Duck/Frog Prophet
Complete Act 15, three o'clock now! Drink the tea first!
Complete Act 14, wonderful night at the museum.
Complete Act 13, I love work, work makes me happy!
Complete Act 12, those who look for realism in fiction must be crazy.
Complete Act 11, what! Outer space! ? Finally stopped thinking at all.
Complete Act 10, are more people losing their ability to search?
Complete Act 9, Up north down south left west right east.
Complete Act 8, solve all problems and achieve the opening of the heart's lotus, the highest wisdom.
Complete Act 7, I want to be quiet, but don't ask me who's quiet.
Complete Act 6, super power rampage!
Complete Act 5, an experiment to wipe out pedestrians, where did they go?
Complete Act 4, eliminate the environmental killer in the subway.
Complete Act 3, Get a date.
Complete Act 2, Express that you like that color after you meet.
Complete Act 1, extinguish the buzzing electric bulb and experience tranquility.
Unlock all "bubbles" in endless mode, then close the game.