A feature called " Perfect Head " , which appeared in previews of the game but was not included in the final product , was intended to take customisation of multiplayer profiles further . This feature allowed the player to place a photograph of their choice onto their in-game character 's face , via a Game Boy Camera combined with the Nintendo 64 Transfer Pak . The images taken could be manipulated with a simple image editing program to adjust their brightness and position . They could then be saved to either the Nintendo 64 cartridge or a Controller Pak and then loaded onto a player 's character in multiplayer , thus creating a virtual representation of the player . Although Rare officially said the feature was dropped due to " technical difficulties " , the actual reason was revealed to be " sensitive issues " surrounding the ability to attack images of real people . Rare 's decision came after the 1999 Columbine High School massacre
Columbine High School massacre
Columbine High School massacre
Perfect Dark