well... is he being paid as a professional reviewer? If so then he should really stick the course because he's being paid to, or decline to give a full normal review and make it clear its because he felt the game was so bad he couldn't even be bothered to finish it.
In the end if it's his job then tough, get the job done or quit... I don't walk out of boring meetings half way through because I can tell they're awful already... although thinking about it...
But no - it's like a film reviewer walking out of a film. It's normally a no-no. He's being paid to review for me and if he isn't doing the job then that's not good enough!
Pity for him he's reviewing a medium where crap can be over twenty hours long vs two - but them's the breaks.
Try to be reasonable... its easier than you think...
