No missable achievements (plus 22 unknown)
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Unlock 10 alien sentences.
Unlock 20 alien sentences
Finish Chapter 1
Buy 10 items from stores.
Use gestures to explain English 3 times.
Find a way to disguise yourself
Finish Chapter 2
Hug 30 aliens.
Finish Chapter 3
Finish the game without attracting the alien government to attack you.
Save Anthony before it's too late (in Notorious run).
Finish the game becoming notorious.
Take a photo of an alien while they are kissing.
Finish the game without you or you followers hurting any living beings.
Take care of your dental hygiene.
Have the sunglasses in your inventory by the end of chapter 3.
Take out 6 enemies without killing them.
Save Kra from becoming Panasunyss (in Pacifist/Fighter run).
Find and wear all eight disguises.
Build a laser gun.
Unlock the 10 polite sentences.
Play through all of Chapter 2 as a skeleton.