![[Switch] Mario Tennis Aces Free to Play for 1 Week for Nintendo Switch Online Subscribers](https://files.cheapies.nz/n/64/20664.jpg?h=0dd9dca5)
Mario Tennis Aces (the full game) will be free to play between the 7th and 13th of August for all Switch Online subscribers. This includes subscribers on a free 7 day trial. The game can potentially be played in full and completed within the free to play period.
The Japanese switch e-store has the full version of Captain Toad Treasure Tracker available for a similar trial (game will be in English on your system).
Create a new nintendo account, giving Japan as your region and including signing up for emails to get enough free coins, then get the week's Nintendo Switch Online trial with that account. (Go to MyNintendo with the Japanese account, Get your free silver coins and redeem them for the code for a free week of NSO; Enter that code in the japanese eshop account; Pick the third option and then download CTTT.)
I should have posted this earlier, as there's only about three and a half days remaining now, but it's an enjoyable wee puzzle game.