From January 2021 many browsers will no longer support Flash technology and some games such as Super Mario Flash may not work.
Solutions are being studied to allow Flash games being playable again on browser. If your game doesn't work you can try one of the similar games on this page.
Super Mario FlashAuthor : Nintendo - 100 976 plays
The two plumbers, stars of video games, are required for new adventures in this flash version of Super Mario. Inspired by Super Mario Bros. 3, the title contains all the codes of the series for our delight. The game features a long adventure in which you will have to do everything to free Princess Peach who is locked in the castle of the infamous Bowser.