Carwardine Parks: Download Play Center (lost exclusive games, 2006-2018)

After the Link Cable Centers were discontinued, Carwardine launched the DS Download Play center. This center was shut down in 2018 due to the launch of the Nintendo Switch, and over it's 12 years of existence, several games have became lost.

Drawn to Life: SpongeBob SquarePants Edition (Download Play Center version)
A port of Drawn to Life: SpongeBob SquarePants Edition for Download Play use. Apart from most of the unlockable stuff being available from the start and being for download play use only, it's the exact same game.

Mario Hoops 3-on-3 (Download Play Center version)
A port of Mario Hoops 3-on-3 for Download Play use, but due to licensing issues from Square Enix, the Final Fantasy characters were replaced with Nickelodeon characters (Ninja became Patrick Star, White Mage became Sandy Cheeks, Cactuar became SpongeBob SquarePants, Moogle became the AGU! version of Kimi Finster and Black Mage became Timmy Turner/as for the costume changes; Blue Ninja became Squidward, Purple Mage became the AGU! version of Angelica Pickles, and White Robe Black Mage became Cosmo), but beside these, all the unlockable stuff being available at the start and being for download play only, it's the exact same game.

Thomas & Friends: Hero of the Rails (Download Play Center version)
A version of the otherwise Europe-only DS tie-in game for the Thomas & Friends special Hero of the Rails, but with David Holt's narration re-recorded by an uncredited Cam Clarke, and character voices are added (performed by uncredited actors imitating the US dub's then-cast - some have since been identified, including Johnny Yong Bosch as Thomas, Rodney Kageyama as Hiro and Lex Lang as Gordon and Spencer)