This page contains Metal Gear Solid Unlockables for Gameboy Color called "IdeaSpy 2.5 CODEC sequence" and has been posted or updated on Apr 18, 2007 by shadowsnipe010. Let us know what you think of this Unlockable by thumbs voting.
IdeaSpy 2.5 CODEC sequence
You have to finish stages in the special stage select to get No. 4 to reveal pieces of the plot.
You have to finish the Japanese, European, or Australian versions of the game. Start a new game and go to the CODEC screen and tune to frequency 140.07. You will be shown an IdeaSpy 2.5 episode for each stage that was completed.
Beat the game, and then start a new game. Dial up 140.07 on the Codec to hear some in-game entertainment.
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