To unlock Alexa super mode, simply say the secret code: "Alexa, up, up, down, down, left, right, left, right, B, A, start." Upon hearing this code, Alexa will activate super mode and respond with phrases like "Super Alexa Mode activated" or "I'm now in super mode." It's important to note that super mode is more of an Easter egg or a fun feature, rather than an actual enhanced functionality of Alexa. Enjoy exploring this hidden feature and have fun with your interactions with Alexa in super mode!