** Warning, the experience the most out of the game you need a device with compass, iphone 3GS and iPhone 4. Ipad version in the works.... Also, first iphone , iphone 3g, ipod touch, and ipod touch 2g are not supported. Virtual reality horror on your iPhone ! 3d Nightmare, which probably is the first "First Person Axer" around, uses the iphones compass and accelerometer to turn your device into a window on a scary world ! Use anaglyph (red / blue) glasses to get the most out of the experience, but always remember to watch your back for killer creatures... - Explore a vast and creepy game world - 3d sound effects - all game playable in anaglyph mode - innovative way of using iPhone sensors ** NOTE : when coming back to the game from another application (using multitasking) compass will stop working, exit the app and re-launch to fix while we are working on an update.