Codes you can use:

1 - Night 1 a.i levels

2 - Night 2 a.i levels

3 - Night 3 a.i levels

4 - Night 4 a.i levels

5 - Night 5 a.i levels

6 - Night 6 a.i levels

Just Monika - Bossfight with Monika

ERR_ - I don't recommend playing this level...