*[https://overange.weebly.com/amstrad-gx4000-cpc-464-6128-plus-reflashable-flash-cartridge.html Flash+ cartridge] Amstrad CPC+ GX4000 reflashable cartridge
*[https://simonowen.com/spectrum/lenskey/ LensKey] LensLok copy-protection decoder for Windows
*[https://sindenlightgun.com/ Sinden Lightgun] LCD-compatible lightgun
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