Here is the full list of all 13 Alteric achievements.
Change space 400 times
Complete Chapter 1
Change space 200 times
Change space 100 times
Complete Chapter 2
Complete Chapter 3
Complete Stage 12 without deaths
Complete Stage 6 without deaths
I found you, Thommy
Jump 1000 times
Jump 2000 times
Jump 4000 times
Die 100 times