I did more testing.
1, 2, 3, 4 work fine if activate individually.
The only combination makes the game crash after completing the level is 1 + 3
The problem is # 1 + 3
Including #8 (which active 1,2,3,4)
I re-test the game again.
I can't find the save file in the HDD, so I create a NEW profile for each test!!
result 1---> 1,2,3,4 works fine by individually (only 1 code at a time) No crash after level 1
result 2---> 1+2, game crash after finishing level 1
result 3---> 1+3 game crash after finishing level 1
result 4---> 1+2+4 game crash after finishing level 1
In conlusion, I think any combinations will make the game crash after level 1.
p.s. I use v5 for testing!