This is the extract from the prehistorik 2 fan website:
To enter any level without knowing the correct level code, enter the following 4 codes:
DEAD
C0DE
F00D
XXXX
where XXXX is the level you want to enter; 0001 for level 1, 0008 for level 8 etc.
Note that the codes contain the number 0, not the character O.
The levels in expert mode have a different number, you must add 000A (hexadecimal) to it:
for example, 0005 is level 5 in beginner mode while 000F is level 5 in expert mode; expert level 6 would be 0010.
Let me explain in detail here: you need to enter these codes one by one, for example: DEAD, C0DE, F00D, 0003.
And you will get to the level 3 in the beginner mode.
DEAD, C0DE, F00D, 000D - and you will get to level 3 in the expert mode.
Note that game does not recognize the letter "O" so it should be zero "0" instead of "O" in the code names.
Beginner mode has 8 levels. Expert mode has 10 levels. If you try to enter level 0009 or 000A, the game will tell you to go to an Expert mode, so technically there are no levels 0009 or 000A.
All level codes for the Beginner mode:
0001
0002
0003
0004
0005
0006
0007
0008
All hexadecimal level codes for the Expert mode:
000B
000C
000D
000E
000F
0010
0011
0012
0013
0014
Post edited July 21, 2022 by y6ep