Here is the full list of all 100 BAX achievements.
Finish level 50
Start level 50
Finish level 49
Start level 49
Finish level 48
Start level 48
Finish level 47
Start level 47
Finish level 46
Start level 46
Finish level 45
Start level 45
Finish level 44
Start level 44
Finish level 43
Start level 43
Finish level 42
Start level 42
Finish level 41
Start level 41
Finish level 40
Start level 40
Finish level 39
Start level 39
Finish level 38
Start level 38
Finish level 37
Start level 37
Finish level 36
Start level 36
Finish level 35
Start level 35
Finish level 34
Start level 34
Finish level 33
Start level 33
Finish level 32
Start level 32
Finish level 31
Start level 31
Finish level 30
Start level 30
Finish level 29
Start level 29
Finish level 28
Start level 28
Finish level 27
Start level 27
Finish level 26
Start level 26
Finish level 25
Start level 25
Finish level 24
Start level 24
Finish level 23
Start level 23
Finish level 22
Start level 22
Finish level 21
Start level 21
Finish level 20
Start level 20
Finish level 19
Finish level 18
Finish level 17
Start level 17
Finish level 16
Start level 16
Finish level 15
Start level 15
Finish level 14
Start level 14
Finish level 13
Start level 13
Finish level 12
Start level 12
Finish level 11
Finish level 10
Start level 11
Start level 18
Start level 19
Start level 10
Finish level 9
Start level 9
Finish level 8
Start level 8
Finish level 7
Start level 7
Finish level 6
Start level 6
Finish level 5
Start level 5
Finish level 4
Start level 4
Finish level 3
Start level 3
Finish level 2
Start level 2
Finish level 1
Start level 1