Ice Age Password Generator

On this page you can get all valid passwords for Ice Age for the Game Boy Advance. There are two more passwords, which are TSLMFD, which lets you view the ending, and MFKRPH, which lets you view some extra stills from the film and some art. Both of these are hard-coded. All other passwords are algorithmically encoded and decoded. Watch the video below for an in-depth look at this password system.

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I wrote an article about what goes into writing a good password system. Read that here.