Here is the full list of all 100 Choco Pixel X achievements.
Symbol 11
Level 37
Level 36
Symbol 10
Level 35
Symbol 9
Symbol 8
Level 34
Symbol 7
Level 33
Level 32
Symbol 6
Symbol 5
Level 31
Level 30
Symbol 4
Symbol 3
Level 29
Symbol 2
Level 28
Symbol 1
Level 27
Level 26
Z
Level 25
Y
Level 24
X
Level 23
W
V
Level 22
Level 21
U
Level 20
T
Level 19
S
Level 18
R
Level 17
Q
Level 16
P
Level 15
O
Level 14
N
M
Level 13
Level 12
L
Level 11
K
Level 10
J
I
Level 9
H
Level 8
Level 7
G
Level 6
F
Level 5
E
D
Level 4
Level 3
C
Level 2
B
Level 1
A
Level 38
Level 39
Level 40
Level 41
Level 42
Level 43
Level 44
Level 45
Level 46
Level 47
Level 48
Level 49
Level 50
Symbol 12
Symbol 13
Symbol 14
Symbol 15
Symbol 16
Symbol 17
Symbol 18
Symbol 19
Symbol 20
Symbol 21
Symbol 22
Symbol 23
Symbol 24