Is it true gameboy advance games will stop working in decades?

Of course they'll stop working. Shit breaks down. Metal rusts. plastics degrade.
I know Nintendo has a reputation for building very reliable hardware, but they didn't literally defeat entropy

>>270538
They have batteries inside that power the chips which hold savegames. It's very low power consumption but they will still eventually run out.
When the batteries die, you can no longer save your game on the cartridge.

>>270569
Its a horrible feeling.

>>270569
I have games for the NES that still saved properly as of two years ago. Such as Dragon Warrior 2.

>>270538
yes, they run on nand which is volatile

>>270569
no, that doesnt apply to gba games.

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>>270633
No they don't, they use mask roms which are non-volatile, owing to there being no way to write them whatsoever, as internally they don't have memory cells, just a wire (or no wire) that's formed when the chip is made.

Flash was so expensive back then that single-game flashcarts cost upwards of $100; there's no way GBA games could have been being sold for less than what it cost to make them.

Further, the cartridge is connected directly into the GBA's memory bus, so nand (which can only be addressed by block) would need to have to have an FTL, which GBA cartridges don't have.

The only flash used by the GBA is tiny 32k eeproms used to save the game, so the only reason you need to be concerned about flash volatility is that if you don't save your game every ten years, you might lose your savegame.