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