Here are some short tips for 4 hidden achievements in Cooking Simulator.
Hidden Achievements Guide
Turn off the lights.
Use the switches to the right of the red door.
Spend all your money and have no more money to cook the order. (game over)
Oh no! He’s leaving!
Serve 1-star dish to food inspector.
You can then load your old save game and do it right.
I can’t work here!
Have at least 5 broken kitchen equipments at the same time.
Wait until the stove is completely broken with all hotplates. Or if it doesn’t work, leave all the devices running all day until they break.
By Unreal Pony