You can now download two of the mini-games from Kirby: Triple Deluxe from the eShop without buying the full title if you happen to live in North America.
The two games in question are Dedede's Drum Dash Deluxe and Kirby Fighters Deluxe and promise to contain enhanced gameplay features rather than just being a straight port from the original cartridge. For example, Dedede's title has seven additional stages on top of the standard version's.
Should you already own Kirby: Triple Deluxe and have StreetPass data for it, you can get even more content from the additional downloadable versions of the mini-games.
Both games are available for $6.99 each on the North American eShop.