Eggs. They crack in 3-10 seconds.
https://store.steampowered.com/app/3229170/Egg_Squeeze/

Rookie
Complete day 1 of training.


Egg-Based Compliance
Complete day 2 of training.


Resident Squeezer
Complete day 3 of training.


Squeeze the World
Complete ending 1.


Eggscape?
Complete ending 2.

You can earn this during the story or in endless mode.

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Fry Cook
Surpass 10,000 synergy.


Eggs Benedict
Surpass 500,000 synergy.


WAGMI
Surpass 1 million synergy.


Egg Overlord
Surpass 10 million synergy.


Egg God
Surpass 100 million synergy.


CEO of Egg Co.
Surpass 1 billion synergy.



Henohenomoeggy
Achieve a 99% squeeze.

You'd probably get this eventually, or get really lucky once.

Egg Squeezer
Squeeze 100 eggs.


Egg Squeezer (Real)
Squeeze 1,000 eggs.



Egg Streaker
Achieve a 10-Squeeze streak.


Quarter Squeezer
Achieve a 25-Squeeze streak.


Century Egg
Achieve a 50-Squeeze streak.



Start on day 1 and break all the eggs you want.
Poor Intuition
Break 3 eggs in a row.


Why Me?
Break 100 eggs.


Unfortunate Eggsperience
Break 1,000 eggs.

A Concept of a Plan
Solidify a deal with Egg Co. Investor group.

While playing in day 3 (or endless) you can get a call to multiply your synergy by squeezing up to a certain percentage. Complete one of those deals to get this achievement.

Forbidden One
Assemble all of the devices.

There are 8 devices that you can get after day 3 (or during endless mode). This is mostly random chance and I'm guessing from by own sessions.

• EGGMETER (Usually the first device you get, ~1000 synergy)
  
• PEGG (~30k synergy, seems to be more random and could show up as late as 70k)
  
• SPIRIT BOX (Unsure on when it's given, possibly when over 60k synergy with some high squeezing percentages)
  
• $EGGX INDEX (~20k synergy)
  
• LIVE CHAT (~10k synergy)
  
• PLANT (Unknown, probably ~30x streak)
  
• WAR (I usually instantly get this after a 95% or higher squeeze, but can apparently still be random)
  
• BUDDY (This is usually the last device you can try and get, I don't know how it's exactly achieved, keep squeezing I guess...)

Uniegg, Eggbow?
Find a rainbow egg.

Small random chance of getting a rainbow egg.

What Came First?
Hatch a baby chick.

Sometimes cracking eggs makes a chick.

Nearly Eggsane
Just barely escape eggsanity.

You need to break an egg and just barely survive from eggsanity. How much you lose per break could vary, so just break and squeeze when trying to get to that point in the meter.

Golden Goose
Find 10 golden eggs.

When getting another egg, sometimes it can be golden. If you want to try and get them easily, start the infinite squeeze, barely squeeze the egg, press escape twice, and repeat.