Here is the full list of all 199 Chocolate makes you happy 2 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Level 50
Symbol 31
Symbol 32
Symbol 33
Symbol 34
Level 49
Symbol 28
Symbol 29
Symbol 30
Level 48
Symbol 25
Symbol 26
Symbol 27
Level 47
Symbol 22
Symbol 23
Symbol 24
Level 46
Symbol 19
Symbol 20
Symbol 21
Level 45
Symbol 16
Symbol 17
Symbol 18
Level 44
Symbol 13
Symbol 14
Symbol 15
Level 43
Symbol 10
Symbol 11
Symbol 12
Level 42
Symbol 7
Symbol 8
Symbol 9
Level 41
Symbol 4
Symbol 5
Symbol 6
Symbol 1
Symbol 2
Symbol 3
Level 40
Level 39
Z2
Z3
Z4
Level 38
Y3
Y4
Z1
Level 37
X4
Y1
Y2
Level 36
X1
X2
X3
Level 35
W2
W3
W4
Level 34
V3
V4
W1
Level 33
U4
V1
V2
Level 32
U1
U2
U3
Level 31
T2
T3
T4
Level 30
S3
S4
T1
Level 29
R4
S1
S2
Level 28
R2
R3
Level 27
Q3
Q4
R1
Level 26
P4
Q1
Q2
Level 25
P1
P2
P3
O2
O3
O4
Level 24
Level 23
N3
N4
O1
Level 22
M4
N1
N2
Level 21
M1
M2
M3
L2
L3
L4
Level 20
K3
K4
L1
Level 19
Level 18
J4
K1
K2
J1
J2
J3
Level 17
Level 16
I2
I3
I4
Level 15
H3
H4
I1
Level 14
G4
H1
H2
Level 13
G1
G2
G3
Level 12
F2
F3
F4
E3
E4
F1
Level 11
D4
E1
E2
Level 10
Level 9
D1
D2
D3
C2
C3
C4
Level 8
Level 7
B3
B4
C1
Level 6
A4
B1
B2
A1
A2
A3
Level 5
7
8
9
Level 4
Level 3
4
5
6
1
2
3
Level 2
Level 1
0a
0b