A few weeks ago the Heavy Rain front boxart was released, and today GameStop has made available the back boxart which reveals a mandatory 4.2GB PS3 HDD installation.

For those curious, Sony has also confirmed that they will offer a Heavy Rain alternate PS3 box art print out on launch.

To quote from JustPushStart.com (linked above): “You might want to save an extra 4.2GB of space in your hard drive as the game will REQUIRE (as the game boxart suggests) you to install the game�s data in order to proceed.

It sure is a lot of space but as you are waiting for the data to install in your hard drive, there will be a guide showing you on how to make a Swan Origami (as featured in the game) while you�re waiting for the game to install.”

Heavy Rain pre-orders are now available for $59.99 and the PlayStation 3 title is scheduled to ship on February 23, 2010.