This guide won't cover an actual walkthrough to the game, as its objectives are straight forward and easy to follow, therefore storyline achievements won't be mentioned either, only the misc. and missable achievements.

There is a total of 30 achievements in the game.

15 of them are storyline therefore unmissable. The rest of them are either missable or misc.

Serve 10 wrong orders to a customer

These 3 achievements can be done in any shifts, however it's better to try and get them after you've unlocked the soda applications, due to the fact it speeds up the "grind". Just serve the customers 3 wrong orders in a row, get killed, and repeat the process until unlocking the achievements.

NOTE:
These achievements can be quite buggy, and not add counts towards the achievements. If this happens, restart the game and redo the wrong orders until it works.

Put out a grill fire

After the 3rd day, you'll also start doing tasks besides serving customers. One of the tasks is to put out the grill fire. Either turn off the applications or turn on the sprinkler systems and you should get the achievement.

Survive Evil Happy

This achievement can be attained during any shift. After serving 3 wrong orders to the customers in a row, Evil Happy will spawn. In order to get the achievement you need to feed her an "Evil Deluxe".

To make one, just cook a rotten patty which can be found in the Freezer, add a bottom and a top bun (don't put the burger in a bag) and toss it to Happy. You should get the achievement afterwards !
Also, make sure to keep her in your view all the time, otherwise she'll start moving and kill you.

Hack a vending depot

After defeating Evil Petey in the warehouse, you'll receive the recipe for crafting a keypad hacker in your apartment.
After crafting one, just use it on any vending machine and you should get the achievement.

Find the Backpack

The backpack can be found in Room Number 6, and to get there you'll need another keypad hacker.
After crafting one, open the door using it, and the backpack is right at the entrance of the apartment.

Eat 10 Energy Bars and Drink 10 Jazzy Javas

Although these can be considered missable, you'll most likely get them both during shifts or during the boss fight with Charlie the Chicken, since you'll need them to move faster than him.

Spoil 10 meat patties

You can get this one by cooking patties in the restaurant and let them spoil afterwards.
However, I managed to get this achievement by throwing multiple patties on the ground while being in Charlie the Chicken's Lair as they were already rotten.

Take 25 pictures

After getting the helmet recipe, you'll also need a camera in order to craft it.
It can be found at the "Steal & Sell" shop and can be purchased for $90. Just take 25 pictures with it before using it for the recipe and you should attain the achievement.

Witness the Nuclear Explosion

After crafting the helmet and putting it on, you'll be teleported to a hotel room. Before leaving it, take a look at the balcony and you'll see the nuclear explosion, obtaining the achievement afterwards.

Buy the Flatscreen TV and Buy the Jukebox

I advise doing these on a second playthrough as you need a lot of money to craft the items required for progression.

Both the Flatscreen TV and the Jukebox can be purchased from the "Steal & Sell" shop for $100 and $180.

Die 10 times

Lastly, if you haven't done this one yet, the fastest method to get it, is to keep serving wrong orders to customers and then let Evil Happy kill you.

Congratulations on your completion !