The rarest game I own is Electroplankton for the DS, released in 2006. One of the official stages in Super Smash Bros. Brawl is based on Electroplankton (it's the one with all the flowers that change colors when you hits them). It was developed and published by Nintendo. One of the producers is the legend himself Shigeru Miyamoto, and the executive producer is Satoru Iwata. As far as I know, this game wasn't advertised at all by Nintendo, at least not in America. It is a very unique and creative game, but it's not as much of a game as it is an audiovisual experience. Each of the 10 electroplankton have a unique characteristic, and they make different sounds. By playing around with them, you can create your own music. I wouldn't say it's extremely rare (I see it going around on eBay for about 40 dollars on average), but it isn't very well-known. There are only 7 other people on VGChartz that have it [registered].
Been away for a bit, but sneaking back in.
Gaming on: PS4, PC, 3DS. Got a Switch! Mainly to play Smash
