Mario Tennis Aces Full Game Demo for Nintendo Switch Online subscribers
Nintendo Switch Online users will have full access to the Mario Tennis Aces game for a trial period starting now until August 13, 11:59 pm PT. The save file will transfer over if you decide to purchase it after the trial period.
To download the trial, go to the Nintendo Switch Online section in the eshop on your Nintendo Switch.
If you do not have Nintendo Switch Online, Amazon Twitch Prime is still giving out 12 months of Nintendo Switch Online for free. All you need to do is be an Amazon Prime member and link your Twitch.tv account to your Amazon Prime account and claim it on Twitch.tv.