This is a repost of the original guide by Eldin. For some reason his Steam profile was deleted by Valve. All credit goes to Eldin.

These codes will earn you the achievement A Chef Doesn't Mince Words.

Make sure not to have classic cheats enhancement enabled as that disables achievements.

Go to load game, password and enter any of the below

Thanks to 6000 Angry Bees for the full listing with some new ones included.

HOWARDSTERN
MARCCONKLIN
PAULLOUGHRIDGE
VINCEMACRI
JERRYMANIER
MATTHIASWLOKA
BOBZELEZNIK
DEBBIELEE
KINTAM
JACKIEJANNOTTA
MARYCOZEAN
ORENTVERSKY
MICHELLEBREINER
DAVIDLIU
VALERIEGREEN
ELLIS
NATER
JZK
SOFIA
KENTAWILLIAMS
DAVIDFORTH
BILLFIELD
EDDYLUH
CHENTER
ANYWAREFAST
OX
CHENTER2
JASONMASAKI
JOHNIRWIN
GREGWILLIAMS
DAVIDZANDERKRAIG
CHRISDOWNEND
KURTISMATTHEWS
FRANCETANTIADO
GEORGEMACDONALD
ALEXCABAL
LUISRIVAS
BAD
PORT
KAISER
SAMUELVILLARREAL

Enable console with ~ symbol. Warning again as it tells you but this disables achievements.

Godmode:
Type god for invincibility

All Weapons:
giveall gives all weapons.

Level Skip:
You can also type map in console of which ids will then be listed for levels. To go to a level simply type map and the id number. You can also type a number for difficulty with 0 being easy and 3 for very hard.

Clipping:
Also, thanks to sephirothOWA for noclip and for the map one listed above. For noclip you need jetpack enabled though otherwise you will fall through the floor.

Classic cheats as provided in conversation by developer Kaiser and gamer Alexroanheim.

May need to adjust keybinds.

*These below need the classic cheat enhancement turned on.

Health Refill:
While summersaulting: Press StrafeRight + MoveBackwards + FireWeapon.

Ammo Refill:
While summersaulting: Press TurnRight + FireWeapon + Jump.

Invulnerability:
With frying pan as current weapon: Highlight drill in weapon selection mode and press NextWeapon + Jump.

NoClip:
Stand on a dead monster, enable jetpack mode, and bring up the weapon selection menu, press: PreviousWeapon + TurnRight + MoveBackwards.

AllWeapons:
In automap mode, press the key to center your view, while the map is centering press: MapZoomOut + MapDecreaseDepth + MapResetDepth + MapIncreaseDepth.


Some additional below as shared by the dev, which were recently discovered after 30 years. Dev said they are almost impossible with frames but was able to get them to work. You need to let go of the tilt up/down keys and IMMEDIATELY press the button combinations to get it to work. Shared an additional tip below that helped me.

Max Health Capacity:
Hold up tilt button until you are looking straight up, press Speed + Jump + Fire + Strafe Left
NOTE: When you hold down tilt up, it will take 15 frames until you are fully looking up. The cheat requires your tilt view to be ON THE 14th FRAME in order for this cheat to work.

A tip I got to work is when you let go of tilt up press it again as same time as the other 4 buttons and hold as it goes back to center view. Takes several tries but is the only way I can get it to work.

Max Ammo Capacity:
Hold down tilt button until you looking straight down, press Speed + Jump, Fire + Strafe Right
NOTE: When you hold down tilt down, it will take 15 frames until you are fully looking down. The cheat requires your tilt view to be ON THE 14th FRAME in order for this cheat to work.

A tip I got to work is when you let go of tilt down press it again as same time as the other 4 buttons and hold as it goes back to center view. Again, takes me several tries.

Use the level select cheat but do not under any circumstances enable classic cheats enhancement being that disables achievements.

Simply go to new game, select difficulty and before hitting yes hit the buttons shown below.

Hold L2, R2, L1, R1 and up and while holding those hit yes to confirm. Let go and don't hit any buttons. After a bit the level select screen pops up. Select final level and go kick some butt. Seems that once the robots are gone and spiders are dead you will eventually see on top of a structure the end level goal. Hit that and if done before 20 minutes you get the achievement.

This is the easy solution for achievement, however, Serious Cacodemon added a full speedrun guide on Steam so if attempting their video I added under achievement section symbol order for Puzzle level to help go along with that one.

To find go to Tombs and at beginning go straight ahead and fly up. If you look carefully there is a hidden hallway. Go through there and in main room of hidden area fly up yet again to another hidden hallway in that same room. There you will find secret warp.

To find make it to High Rise level and here you want to make it all the way to top where level warp is but don’t go through that. If you look carefully you will find 3 wall warps in that same final room. Go through the left one and head straight to Elvis.

This is the best way I know how to explain the correct symbols to use or at least what makes sense to me. On Puzzle level to solve it and get final secret level, Sketch, look at symbols in rooms and go in them using this order. Save in first room before going in warp to make sure you hit the correct first one.

Also, unsure on amount so kill every enemy you see.

Underscore means underneath squiggly.

T is a sideways t or what sort of looks like it.

Failing to go through the below order just nets you the normal level.

Order

Underscore, z, x, s dots top, c, a, s dots top, z, t, s down dots, c, underscore, s down dots, x, t, underscore, a, z. Go through end level warp. As long as you went through every symbol room in that order you will enter secret level.

The goal is to not go over all of them as they are pretty self explanatory, but more to offer tips where needed.

An Elevated Palate

Acquire jetpack.

Jetpack can be found on 2nd level, Jump. Look up to see a yellow container near bridge with jetpack inside spinning.

Also can be found on 3rd level, Sponge, at bottom in a hidden spot. Quite easy to find. Switch on both sides of the switchbox that is in the center of the ground level. This will open two secret doors in this area. The jetpack is behind one of those doors. Listen for the music chimes that play when near it.

Difficulty achievements:

You Know How To Dish It Out

Finish on hard.

Marco Pierre White’s Love Child

Complete on hardcore.

Both the above can be completed via the level select cheat mentioned in speedrun section to skip to last level on selected difficulty.

A Clean Chef’s Uniform:

Pompous Medium Rare was the easiest to do this for me. Both don’t kill enemies and also don’t let other enemies kill each other either to earn.

Fully Stocked

Acquire all ammo and health upgrades. Only need 2 of each to max out to 300 for both ammo and health, but below are all locations.

Ammo upgrades found in both Spiral and Canyon near end.

Health extender found in Ledges level on a column.

Health extender found in Aclogo. Shoot the lower left grate on one of the walls in this area to open it. Then, approach the red wall of the hidden room on foot mode to reveal the health extender.

A health extender will eventually appear below the flame in the center of the secret level Sketch.

Speedrunner

I mention in a previous section. My goal is to keep this easy for achievement but Serious Cacodemon posted a full speedrun if you want to see that in a separate guide.

I will share that if doing their full speedrun the Puzzle level symbol order is underscore, a, x, underscore, t, s down dots, underscore.

See Puzzle solution section for what I mean by underscore and note that t is sideways. You are skipping secret levels so the order is different if you are doing full speedrun as shared by Serious Cacodemon. Check their Steam guide video to go along with this if attempting full speedrun.

A Chef Doesn’t Mince Words

Mentioned under Majesta section of guide.