Here is the full list of all 45 ERI achievements.
Level complete 45
Level complete 44
Level complete 43
Level complete 42
Level complete 41
Level complete 40
Level complete 39
Level complete 38
Level complete 37
Level complete 36
Level complete 35
Level complete 34
Level complete 33
Level complete 32
Level complete 31
Level complete 30
Level complete 29
Level complete 28
Level complete 27
Level complete 26
Level complete 25
Level complete 24
Level complete 23
Level complete 22
Level complete 21
Level complete 20
Level complete 19
Level complete 18
Level complete 17
Level complete 16
Level complete 15
Level complete 14
Level complete 13
Level complete12
Level complete 11
Level complete 10
Level complete 9
Level complete 8
Level complete 7
Level complete 6
Level complete 5
Level complete 4
Level complete 3
Level complete 2
Level complete 1