Super Mario 64 is a game that was originally released in 1996 for the Nintendo 64. It's an action-adventure game where you play as the character Mario, who is a plumber. Your goal in the game is to use your skills and abilities to explore many different levels. You must jump, run, punch, and swim to collect coins, defeat enemies, and find pieces of a magical key so that you can open doors and complete the levels. Along the way, you can also find power-ups to help you on your quest - like mushrooms and stars that make you bigger or faster! Super Mario 64 was one of the first games to use 3D graphics and it has many different levels to explore, making it one of the most popular games ever!