Games in that era used mask ROM for the game data, so they don’t lose state over time as quickly as NAND flash does without power.
I say “as quickly” because I’m sure mask ROM still degrades eventually, but I’m not sure how long it takes.
The batteries in Game Boy carts were for keeping the save data SRAM powered. If that battery dies you’ll lose any data on the save RAM, but it doesn’t affect the mask ROM.
Games in that era used mask ROM for the game data, so they don’t lose state over time as quickly as NAND flash does without power.
I say “as quickly” because I’m sure mask ROM still degrades eventually, but I’m not sure how long it takes.
The batteries in Game Boy carts were for keeping the save data SRAM powered. If that battery dies you’ll lose any data on the save RAM, but it doesn’t affect the mask ROM.
Cool good to know. I don’t have a system for some of them at the moment, so I can’t very well boot them all up to…. fix them?
Regardless, appreciate the info!