This listing is for the exact physical development/test cartridge shown in the photos. Acquired as part of a private lot, no further history or provenance documentation is available. It's in working condition and when tested on a retail Nintendo DS, it boots to a Japanese-language screen indicating a high-score ranking communication program. DSi and 3DS compatibility is not confirmed. No additional functionality has been tested or is guaranteed. Sold strictly as a physical item as-is. The Nintendo DS Lite console is not included.