Next Space Rebels

at one point in the story you'll be contacted by scrap dad and rosewood(woodrose? can't remember)
you will have to complete scrap dad questline to get the achievement !

- after a moment, you will get an ultimatum from both of them and you'll need to pick a side, voiding the other questline ! i greatly recommend you do the woodbased questline until you can't anymore (before the algae barrel normally) so you can get the piece made of wood, which are quite useful in the game imho

- if you are struggling with the saw challenge which need to be launched in a dumpster, you are not alone, i really hate this one, the way i did it is setting two large boosters in the direction of the dumpster, which point 30 degree up, and two which pointed downward and slightly delayed to push the thing inside the dumpster...
the simulation part of the game is funky, so you can't replicate 1 for 1, each launch will be different, so it's better adjusting and trying to relaunch several time, than ajusting after each launch.... but you'll need patience, this mission is really annoying !

- once you get to the mission where you get the molotov, it's the last one from the questline, make sure you finished all you needed to do in terms of challenge has it's possible you'll get a strike from startube for it !