Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
I use my Action Replay 4m+ in the memory card slot so that I can play it on a US system. (You will also need an old tube TV in order to play because this uses light gun tech.) The gun is completely compatible with my US system and I have used it to play my US version of Area 51. You can play two player if you have another gun controller which I highly recommend. From the menu screen you can calibrate your accuracy, turn off and on the "sights", and change your health and number of continues. The game is a ton of fun and I play it all the time.