[Q]

Small but important correction about cheat codes:

To activate you must press ` not ~
And you must use the US layout for your keyboard. There it is the key just on the upper left corner (left to 1).
If the cheat code is activated you will see at the lower left of your screen in red a line saying "cheat code" and then you type in the code you want and confirm with ` again.
I learned that after a lot of unsuccessful trials with the help of Phoenix D.