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Sir Box-a-Lot is a handheld, hackable 8-bit Sokoban clone implemented from scratch for the retro-modern AVR Dx series microcontroller. The hardware costs around $50 to assemble. The implementation features:

- A selection of 300 levels with progressively increasing difficulty, suitable for novices and experienced players alike,
- A polished, portable form factor when assembled on an inexpensive mail-order PCB,
- Smooth animations, retro sounds, and full-color graphics rendered on a modern OLED screen,
- Multi-user support with a range of per-level achievements,
- Generous undo and other convenience features for streamlined, frustration-free gameplay,
- Relatively low power consumption for at least 40 hours of gameplay on a single set of batteries.”

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