@Lindi
I've restarted the game, and I think that you have to do some more puzzles before you can play the arcade game. If the screen of the arcade game is blurred, it's not ready yet.
You need to solve some puzzles, open parts of the chest with the keys that you collect, and read 2 journals.
When it's ready to play, the screen will be clear and sharp, then you will be able to use the ENTER key
It must look that clear, and the buttons must be in the foreground like this:
I've restarted the game, and I think that you have to do some more puzzles before you can play the arcade game. If the screen of the arcade game is blurred, it's not ready yet.
You need to solve some puzzles, open parts of the chest with the keys that you collect, and read 2 journals.
When it's ready to play, the screen will be clear and sharp, then you will be able to use the ENTER key

It must look that clear, and the buttons must be in the foreground like this:
Comment