How to actually get this achievements with unclear description? Let me tell you.
Mother’s Wrath
In general, it seems like one is pretty enough, but personally I collected every single one on the way, then everything is simple: DO NOT kill a single grub until you get to the nest and to the mother, when you freed her: you take out the grubs and crush them right in front of her, she become mad and kill you and you ressurect at the last save (if there is one), after that – you will have the achievement.
You can also just shoot the mother with a handgun, I haven’t tested it, shoutout for the information provided @То самое казино

Suspicious Meat
So this thing will be useful to us, all we need to do is: take a cleaver, approach any living creature (I picked a barnacle) and cut it, the meat will fall not into the inventory, but nearby, I honestly have no idea after how many hits and whether it works on every creature, most likely the meat will drop with a chance, but I haven’t tested it, keep in mind, after you get a piece of meat, take it and eat it, that’s all. You will have the achievement. The cleaver can be obtained either in the abyss saferoom, (where you take artifacts – randomly.) Or at the bazaar, (which opens in global upgrades of facility)
.)
Easy ways to get other achievements
Just Started Blasting
There are quite a lot of shooting targets in “feeding through”, you will get there one way or another, regardless of the path you choose. There are a large number of “crabs” as I call them, and when I say “large” it means that there are a lot of them there, just let them get closer and shoot.
Mother’s Embrace and Hefty Reward
Grubs can be found everywhere, in vending machines for sale, in secret rooms, in other secrets. There is a lot of information on this on the Internet, so choose for yourself.
As for the delivery itself: try not to take unnecessary risks so as not to end up in a situation where you need to crush a bug; if you have problems with space, there is a bag trinket, you can also put grubs there.
Cultural Exchange
The store opens in any of the terminals, in the global section, for 100 points.
It is in every Ascent region and in many regular locations, I don’t know all the locations, so here’s an example of what the hatch looks like: metal, in the wall, the inscription 1347. There should have been a screenshot here, but Steam won’t let me paste it, so it will appear here later. If you want pictures, check out the White knuckle wiki.
Child of lambda, A Hero
Being in a roach mode, you can jump high when holding ctrl (Rabbit DNA but not wasting your stamina), according to my observations, the only thing that will hinder you is your height and the height of a normal jump. (No increased damage.)
Roach mode is available in bindings after saving the mother. (or after going through the company, I don’t know exactly because I did it in one run)
Escape is no longer an option.
Just go through the campaign, conventionally meta perks have always been and will be increased jumps and additional jumps. Depending on your build, feel free to use artifacts, there are more of them and they are now really more useful, especially with the Overwhelmed nerf.