Darumeshi Sports Store
is a free-to-play title found in Nintendo's Japanese 3DS eShop. It works like a lot of free-to-play titles do: it costs nothing to download and relies upon in-game microtransactions to extract revenue from players. However, Darumeshi
comes with a twist: players can bargain with the system for lower prices.
Through a combination of in-game item collection (a familiar idea) and doing favors for the in-game shopkeeper (a more novel concept), Darumeshi
players can shave off more than a quarter off the retail price of the title's minigames. It may even be possible to get the games for free.
is geared toward older players and likely not the sort of title we'll see localized, but we know that Nintendo is flirting with the free-to-play model
these days -- so perhaps we'll see something with a similar bargaining system reach the West sometime in the future.
You can visit the game's eShop page (in Japanese) here