Battery-free GameBoy
summary
A battery-free handheld runs off-the-shelf Game Boy ROMs like Tetris and Super Mario Land by harvesting sunlight and energy from button presses and using a mixed-volatility memory architecture to survive frequent power losses. Custom hardware called ENGAGE platform achieves >20× power efficiency versus an original Game Boy while an intermittent-aware emulator tracks touched memory and uses MPatch checkpoints that are about 2× faster than naïve full-memory checkpointing to restore game state seamlessly.
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