In old NES games, why would graphical glitches cause graphics to turn into numbers?

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It doesn’t happen often but I’ve seen it a few times. Why would NES graphics turn into numbers when they glitch out?

In: Technology

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Anonymous 0 Comments

The NES pretty much draws everything by using sets of rectangular stamps. When the instructions become corrupt, the NES starts fetching the stamps at random, so you get numbers stamped on top of Mario’s face and letters replacing Cheep Cheep’s butt, and so on.

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