Youtube thread reminded me about Dendy (NES) that I didn't use for decades. I've lost all cartridges (gave them to some relatives long ago), but at this New Year I've got multi cartridge with 200 games as joke gift. Decided to try it today.

Surprisingly, device worked after years of storage. Although I need to buy RCA cable now because using TV-in isn't fun (need to retune TV after). Photos show widened image, I swapped it to 4:3 ratio after and image became better. Some noticeable games that I remember also missing, but at least there is something.