First 90 achievements are just for completing the levels, I used an auto-clicker to instantly kill the little floating icons. then the last 10 are for doing specific things. Most of the other achievements are very easy and their name just tells you what to click.

Specific ones you might not get instantly.
The sound achievement you do in the settings tab, there is a volume slider.

The 'no' achievement is when you go to leave the game but then press the red button without closing the game.