CFC4 freeze

This article is incomplete. Please feel free to add any missing information about the subject. It is missing: Why this occurs and why Diglett's Cave works as a solution.

The CFC4 freeze occurs in Pokémon Red and Blue. If the value of memory address CFC4 is an odd value, it can cause the game to freeze after the conclusion of a battle.

The freeze curiously, can be avoided by performing a glitch that would normally cause it to occur in Diglett's Cave.

The following glitches are known for corrupting CFC4.

• "Bad CoolTrainers" (see - (move))
• Wild appeared! (with 220+ or 0 Pokémon)
• Other buffer overflow techniques such as Super Glitch
• During instant encounter infinite chain glitch

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