Here is the full list of all 30 MechaNika achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
You made Manson the cat happy with Dennis' socks.
You completed MechaNika without a clue.
You completed the MechaNika project.
You didn't spend any money to complete MechaNika.
You discovered Nika's secret lab.
You got the ignition system.
You got the projectiles.
You got the saw disk.
You fixed the Gate of Great Sacrifice!
You won the RoboPodcast quiz!
You got the flammable liquid.
You won the Ninja Turtles' quiz!
You got the air compressor.
You discovered your grandpa's magazines in the hidden safe box.
You got the microwave emitter.
You got the transmission chain.
You discovered the end of grandpas' story.
You got the reflective panels.
You got the propellant.
You got the multimedia recorder.
You got the shrapnel.
You got the multimedia player.
You disguised yourself as grandma Rosemary.
You couldn't stand Dennis' smelly socks.
You got a portable TV thanks to your trolling proficiency.
You got your Project Silcharde poster signed by Mango Protocol!
You exchanged your meal for some spray cans.
You tried to leave school.
You flushed the dirty toilet in the school.
You interrupted a poor girl while she was in the toilet.