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