Great game, not too unfriendly for those unfamiliar with Portal. Most tests could be passed without any problem.

Only real complaint I have is the lack of a "load save" option. Because of that,I got stuck a few times.

Great game, not too unfriendly for those unfamiliar with Portal. Most tests could be passed without any problem. Only real complaint I have is the lack of a "load save" option. Because of that,I got stuck a few times.