Lifeline

Lifeline, known as Operator's Side (オペレーターズサイド) in Japan, is a PlayStation 2 video game developed by Sony Computer Entertainment and published by Konami in North America. It is notable for its unique control gimmick, requiring players to transmit voice commands through a microphone in order to perform actions in the game world. It was released on January 30, 2003 in Japan, and March 2, 2004 in North America. It was released as one of the PS2 The Best on September 25, 2003 in Japan. Japanese versions of the game gave players the option to purchase the game with the USB headset as a bundle.

In total, 6 versions of the game were released. The North American release, 4 Japanese releases (initial release and PlayStation 2 the Best, both with variants that included the USB microphone), and a lost Japan-only demo disc for the PS2.

Emulation
Lifeline can be emulated with minimal issues on modern systems. For more information, visit the game's page on the PCSX2 wiki.

Regional Differences

 * Naomi's name is Sayaka in the Japanese release
 * The tutorial, as well as most cutscenes, can be skipped only in the NA release
 * The Japanese re-release of the game was slightly updated, being version 1.02. It's unknown exactly what was changed in this version, but its presumed minor.