The following list contains every currently known game or port which is no longer available to the general public for purchase or legal download. The list is divided into categories based on why or how the games are inaccessible.
Download-only Games Using Defunct Services
These games are currently inaccessible due to being only available through online services which are now defunct.
- Balloon Fight (NES)/Sharp Zaurus
- The original service for purchasing and downloading games for the Sharp Zaurus is now defunct. No known backups exist online.
- Balloon Fight (NES)/Wii
- The Wii Shop Channel has shut down, and now there is no way to purchase a new copy for download.
Games which will be Delisted
In March 2023, the Nintendo 3DS and Wii U eShop will no longer be allowing new purchases. Because of this, several games will become inaccessible in the near future. Although the games won't be available for new purchases, players who already had bought the game will still be able to redownload a copy even after the cutoff.
Download-only Games At Risk
These games are not currently inaccessible, but due to the nature of online services, will likely become inaccessible at some point in the future.
While not necessarily a full game, a heavily Balloon Fight-inspired minigame for the Garage section of Nintendo Labo: VR Kit was released through the Switch's News section. Because it has to be downloaded from the news article, once the article is taken down or the News section becomes defunct, the game will no longer be able to be downloaded.